Math¶

This extension provides useful mathematical functions such as power, round, random, cos, log, etc.

Features¶

• percentile (AggregateFunction)

  This functions returns the pth percentile value of a given argument.

• abs (Function)

  This function returns the absolute value of the given parameter. It wraps the java.lang.Math.abs() function.

• acos (Function)

  If -1 <= p1 <= 1, this function returns the arc-cosine (inverse cosine) value of p1.If the domain is invalid, it returns NULL. The value returned is in radian scale. This function wraps the java.lang.Math.acos() function.

• asin (Function)

  If -1 <= p1 <= 1, this function returns the arc-sin (inverse sine) value of p1. If the domain is invalid, it returns NULL. The value returned is in radian scale. This function wraps the java.lang.Math.asin() function.

• atan (Function)

  1. If a single p1 is received, this function returns the arc-tangent (inverse tangent) value of p1.
  2. If p1 is received along with an optional p1, it considers them as x and y coordinates and returns the arc-tangent (inverse tangent) value. The returned value is in radian scale. This function wraps the java.lang.Math.atan() function.

• bin (Function)

  This function returns a string representation of the p1 argument, that is of either integer or long data type, as an unsigned integer in base 2. It wraps the java.lang.Integer.toBinaryString and java.lang.Long.toBinaryString methods.

• cbrt (Function)

  This function returns the cube-root of p1 which is in radians. It wraps the java.lang.Math.cbrt() function.

• ceil (Function)

  This function returns the smallest double value, i.e., the closest to the negative infinity, that is greater than or equal to the p1 argument, and is equal to a mathematical integer. It wraps the java.lang.Math.ceil() method.

• conv (Function)

  This function converts a from the fromBase base to the toBase base.

• copySign (Function)

  This function returns a value of an input with the received magnitude and sign of another input. It wraps the java.lang.Math.copySign() function.

• cos (Function)

  This function returns the cosine of p1 which is in radians. It wraps the java.lang.Math.cos() function.

• cosh (Function)

  This function returns the hyperbolic cosine of p1 which is in radians. It wraps the java.lang.Math.cosh() function.

• e (Function)

  This function returns the java.lang.Math.E constant, which is the closest double value to e, where e is the base of the natural logarithms.

• exp (Function)

  This function returns the Euler's number e raised to the power of p1. It wraps the java.lang.Math.exp() function.

• floor (Function)

  This function wraps the java.lang.Math.floor() function and returns the largest value, i.e., closest to the positive infinity, that is less than or equal to p1, and is equal to a mathematical integer.

• getExponent (Function)

  This function returns the unbiased exponent that is used in the representation of p1. This function wraps the java.lang.Math.getExponent() function.

• hex (Function)

  This function wraps the java.lang.Double.toHexString() function. It returns a hexadecimal string representation of the input, p1.

• isInfinite (Function)

  This function wraps the java.lang.Float.isInfinite() and java.lang.Double.isInfinite() and returns true if p1 is infinitely large in magnitude and false if otherwise.

• isNan (Function)

  This function wraps the java.lang.Float.isNaN() and java.lang.Double.isNaN() functions and returns true if p1 is NaN (Not-a-Number), and returns false if otherwise.

• ln (Function)

  This function returns the natural logarithm (base e) of p1.

• log (Function)

  This function returns the logarithm of the received number as per the given base.

• log10 (Function)

  This function returns the base 10 logarithm of p1.

• log2 (Function)

  This function returns the base 2 logarithm of p1.

• max (Function)

  This function returns the greater value of p1 and p2.

• min (Function)

  This function returns the smaller value of p1 and p2.

• oct (Function)

  This function converts the input parameter p1 to octal.

• parseDouble (Function)

  This function returns the double value of the string received.

• parseFloat (Function)

  This function returns the float value of the received string.

• parseInt (Function)

  This function returns the integer value of the received string.

• parseLong (Function)

  This function returns the long value of the string received.

• pi (Function)

  This function returns the java.lang.Math.PI constant, which is the closest value to pi, i.e., the ratio of the circumference of a circle to its diameter.

• power (Function)

  This function raises the given value to a given power.

• rand (Function)

  This returns a stream of pseudo-random numbers when a sequence of calls are sent to the rand(). Optionally, it is possible to define a seed, i.e., rand(seed) using which the pseudo-random numbers are generated. These functions internally use the java.util.Random class.

• round (Function)

  This function returns the value of the input argument rounded off to the closest integer/long value.

• signum (Function)

  This returns +1, 0, or -1 for the given positive, zero and negative values respectively. This function wraps the java.lang.Math.signum() function.

• sin (Function)

  This returns the sine of the value given in radians. This function wraps the java.lang.Math.sin() function.

• sinh (Function)

  This returns the hyperbolic sine of the value given in radians. This function wraps the java.lang.Math.sinh() function.

• sqrt (Function)

  This function returns the square-root of the given value. It wraps the java.lang.Math.sqrt()s function.

• tan (Function)

  This function returns the tan of the given value in radians. It wraps the java.lang.Math.tan() function.

• tanh (Function)

  This function returns the hyperbolic tangent of the value given in radians. It wraps the java.lang.Math.tanh() function.

• toDegrees (Function)

  This function converts the value given in radians to degrees. It wraps the java.lang.Math.toDegrees() function.

• toRadians (Function)

  This function converts the value given in degrees to radians. It wraps the java.lang.Math.toRadians() function.

percentile¶

This functions returns the pth percentile value of a given argument.

Syntax

<DOUBLE> math:percentile(<INT|LONG|FLOAT|DOUBLE> arg, <DOUBLE> p)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (sensorId int, temperature double);
from InValueStream
select math:percentile(temperature, 97.0) as percentile
insert into OutMediationStream;

This function returns the percentile value based on the argument given. For example, math:percentile(temperature, 97.0) returns the 97^th percentile value of all the temperature events.

abs¶

This function returns the absolute value of the given parameter. It wraps the java.lang.Math.abs() function.

Syntax

<DOUBLE> math:abs(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:abs(inValue) as absValue
from InValueStream
insert into OutMediationStream;

Irrespective of whether the inValue in the input stream holds a value of abs(3) or abs(-3),the function returns 3 since the absolute value of both 3 and -3 is 3. The result directed to OutMediationStream stream.

acos¶

If -1 <= p1 <= 1, this function returns the arc-cosine (inverse cosine) value of p1.If the domain is invalid, it returns NULL. The value returned is in radian scale. This function wraps the java.lang.Math.acos() function.

Syntax

<DOUBLE> math:acos(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:acos(inValue) as acosValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, the function calculates the arc-cosine value of it and returns the arc-cosine value to the output stream, OutMediationStream. For example, acos(0.5) returns 1.0471975511965979.

asin¶

If -1 <= p1 <= 1, this function returns the arc-sin (inverse sine) value of p1. If the domain is invalid, it returns NULL. The value returned is in radian scale. This function wraps the java.lang.Math.asin() function.

Syntax

<DOUBLE> math:asin(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:asin(inValue) as asinValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, the function calculates the arc-sin value of it and returns the arc-sin value to the output stream, OutMediationStream. For example, asin(0.5) returns 0.5235987755982989.

atan¶

1. If a single p1 is received, this function returns the arc-tangent (inverse tangent) value of p1. 2. If p1 is received along with an optional p1, it considers them as x and y coordinates and returns the arc-tangent (inverse tangent) value. The returned value is in radian scale. This function wraps the java.lang.Math.atan() function.

Syntax

<DOUBLE> math:atan(<INT|LONG|FLOAT|DOUBLE> p1)
<DOUBLE> math:atan(<INT|LONG|FLOAT|DOUBLE> p1, <INT|LONG|FLOAT|DOUBLE> p2)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double, inValue2 double);
select math:atan(inValue1, inValue2) as convertedValue
from InValueStream
insert into OutMediationStream;

If the inValue1 in the input stream is given, the function calculates the arc-tangent value of it and returns the arc-tangent value to the output stream, OutMediationStream. If both the inValue1 and inValue2 are given, then the function considers them to be x and y coordinates respectively and returns the calculated arc-tangent value to the output stream, OutMediationStream. For example, atan(12d, 5d) returns 1.1760052070951352.

bin¶

This function returns a string representation of the p1 argument, that is of either integer or long data type, as an unsigned integer in base 2. It wraps the java.lang.Integer.toBinaryString and java.lang.Long.toBinaryString methods.

Syntax

<STRING> math:bin(<INT|LONG> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue long);
select math:bin(inValue) as binValue
from InValueStream    
insert into OutMediationStream;

If the inValue in the input stream is given, the function converts it into an unsigned integer in base 2 and directs the output to the output stream, OutMediationStream. For example, bin(9) returns 1001.

cbrt¶

This function returns the cube-root of p1 which is in radians. It wraps the java.lang.Math.cbrt() function.

Syntax

<DOUBLE> math:cbrt(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:cbrt(inValue) as cbrtValue    
from InValueStream
insert into OutMediationStream;

If the inValue is given, the function calculates the cube-root value for the same and directs the output to the output stream, OutMediationStream. For example, cbrt(17d) returns 2.5712815906582356.

ceil¶

This function returns the smallest double value, i.e., the closest to the negative infinity, that is greater than or equal to the p1 argument, and is equal to a mathematical integer. It wraps the java.lang.Math.ceil() method.

Syntax

<DOUBLE> math:ceil(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:ceil(inValue) as ceilingValue    
from InValueStream
insert into OutMediationStream;

This function calculates the ceiling value of the given inValue and directs the result to OutMediationStream output stream. For example, ceil(423.187d) returns 424.0.

conv¶

This function converts a from the fromBase base to the toBase base.

Syntax

<STRING> math:conv(<STRING> a, <INT> from.base, <INT> to.base)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue string,fromBase int,toBase int);
select math:conv(inValue,fromBase,toBase) as convertedValue
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, and the base in which it currently resides in and the base to which it should be converted to is specified, the function converts it into a string in the target base and directs it to the output stream, OutMediationStream. For example, conv("7f", 16, 10) returns "127".

copySign¶

This function returns a value of an input with the received magnitude and sign of another input. It wraps the java.lang.Math.copySign() function.

Syntax

<DOUBLE> math:copySign(<INT|LONG|FLOAT|DOUBLE> magnitude, <INT|LONG|FLOAT|DOUBLE> sign)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double, inValue2 double);
select math:copySign(inValue1,inValue2) as copysignValue    
from InValueStream
insert into OutMediationStream;

If two values are provided as inValue1 and inValue2, the function copies the magnitude and sign of the second argument into the first one and directs the result to the output stream, OutMediatonStream. For example, copySign(5.6d, -3.0d) returns -5.6.

cos¶

This function returns the cosine of p1 which is in radians. It wraps the java.lang.Math.cos() function.

Syntax

<DOUBLE> math:cos(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:cos(inValue) as cosValue    
from InValueStream
insert into OutMediationStream;

If the inValue is given, the function calculates the cosine value for the same and directs the output to the output stream, OutMediationStream. For example, cos(6d) returns 0.9601702866503661.

cosh¶

This function returns the hyperbolic cosine of p1 which is in radians. It wraps the java.lang.Math.cosh() function.

Syntax

<DOUBLE> math:cosh(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:cosh(inValue) as cosValue    
from InValueStream
insert into OutMediationStream;

If the inValue is given, the function calculates the hyperbolic cosine value for the same and directs the output to the output stream, OutMediationStream. For example, cosh (6d) returns 201.7156361224559.

e¶

This function returns the java.lang.Math.E constant, which is the closest double value to e, where e is the base of the natural logarithms.

Syntax

<DOUBLE> math:e()

EXAMPLE 1

define stream InValueStream (inValue double);
select math:e() as eValue
from InValueStream    
insert into OutMediationStream;

This function returns the constant, 2.7182818284590452354 which is the closest double value to e and directs the output to OutMediationStream output stream.

exp¶

This function returns the Euler's number e raised to the power of p1. It wraps the java.lang.Math.exp() function.

Syntax

<DOUBLE> math:exp(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:exp(inValue) as expValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the inputstream holds a value, this function calculates the corresponding Euler's number e and directs it to the output stream, OutMediationStream. For example, exp(10.23) returns 27722.51006805505.

floor¶

This function wraps the java.lang.Math.floor() function and returns the largest value, i.e., closest to the positive infinity, that is less than or equal to p1, and is equal to a mathematical integer.

Syntax

<DOUBLE> math:floor(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:floor(inValue) as floorValue    
from InValueStream
insert into OutMediationStream;

This function calculates the floor value of the given inValue input and directs the output to the OutMediationStream output stream. For example, (10.23) returns 10.0.

getExponent¶

This function returns the unbiased exponent that is used in the representation of p1. This function wraps the java.lang.Math.getExponent() function.

Syntax

<INT> math:getExponent(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:getExponent(inValue) as expValue    
from InValueStream
insert into OutMediationStream;

This function calculates the unbiased exponent of a given input, inValue and directs the result to the OutMediationStream output stream. For example, getExponent(60984.1) returns 15.

hex¶

This function wraps the java.lang.Double.toHexString() function. It returns a hexadecimal string representation of the input, p1.

Syntax

<STRING> math:hex(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue int);
select math:hex(inValue) as hexString    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is provided, the function converts this into its corresponding hexadecimal format and directs the output to the output stream, OutMediationStream. For example, hex(200) returns "c8".

isInfinite¶

This function wraps the java.lang.Float.isInfinite() and java.lang.Double.isInfinite() and returns true if p1 is infinitely large in magnitude and false if otherwise.

Syntax

<BOOL> math:isInfinite(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double,inValue2 int);
select math:isInfinite(inValue1) as isInfinite    
from InValueStream
insert into OutMediationStream;

If the value given in the inValue in the input stream is of infinitely large magnitude, the function returns the value, true and directs the result to the output stream, OutMediationStream. For example, isInfinite(java.lang.Double.POSITIVE_INFINITY) returns true.

isNan¶

This function wraps the java.lang.Float.isNaN() and java.lang.Double.isNaN() functions and returns true if p1 is NaN (Not-a-Number), and returns false if otherwise.

Syntax

<BOOL> math:isNan(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double,inValue2 int);
select math:isNan(inValue1) as isNaN    
from InValueStream
insert into OutMediationStream;

If the inValue1 in the input stream has a value that is undefined, then the function considers it as an NaN value and directs True to the output stream, OutMediationStream. For example, isNan(java.lang.Math.log(-12d)) returns true.

ln¶

This function returns the natural logarithm (base e) of p1.

Syntax

<DOUBLE> math:ln(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:ln(inValue) as lnValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, the function calculates its natural logarithm (base e) and directs the results to the output stream, OutMeditionStream. For example, ln(11.453) returns 2.438251704415579.

log¶

This function returns the logarithm of the received number as per the given base.

Syntax

<DOUBLE> math:log(<INT|LONG|FLOAT|DOUBLE> number, <INT|LONG|FLOAT|DOUBLE> base)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (number double, base double);
select math:log(number, base) as logValue    
from InValueStream
insert into OutMediationStream;

If the number and the base to which it has to be converted into is given in the input stream, the function calculates the number to the base specified and directs the result to the output stream, OutMediationStream. For example, log(34, 2f) returns 5.08746284125034.

log10¶

This function returns the base 10 logarithm of p1.

Syntax

<DOUBLE> math:log10(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:log10(inValue) as lnValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, the function calculates the base 10 logarithm of the same and directs the result to the output stream, OutMediatioStream. For example, log10(19.234) returns 1.2840696117100832.

log2¶

This function returns the base 2 logarithm of p1.

Syntax

<DOUBLE> math:log2(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:log2(inValue) as lnValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, the function calculates the base 2 logarithm of the same and returns the value to the output stream, OutMediationStream. For example log2(91d) returns 6.507794640198696.

max¶

This function returns the greater value of p1 and p2.

Syntax

<DOUBLE> math:max(<INT|LONG|FLOAT|DOUBLE> p1, <INT|LONG|FLOAT|DOUBLE> p2)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double,inValue2 int);
select math:max(inValue1,inValue2) as maxValue    
from InValueStream
insert into OutMediationStream;

If two input values inValue1, and inValue2 are given, the function compares them and directs the larger value to the output stream, OutMediationStream. For example, max(123.67d, 91) returns 123.67.

min¶

This function returns the smaller value of p1 and p2.

Syntax

<DOUBLE> math:min(<INT|LONG|FLOAT|DOUBLE> p1, <INT|LONG|FLOAT|DOUBLE> p2)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double,inValue2 int);
select math:min(inValue1,inValue2) as minValue    
from InValueStream
insert into OutMediationStream;

If two input values, inValue1 and inValue2 are given, the function compares them and directs the smaller value of the two to the output stream, OutMediationStream. For example, min(123.67d, 91) returns 91.

oct¶

This function converts the input parameter p1 to octal.

Syntax

<STRING> math:oct(<INT|LONG> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue long);
select math:oct(inValue) as octValue    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream is given, this function calculates the octal value corresponding to the same and directs it to the output stream, OutMediationStream. For example, oct(99l) returns \"143\".

parseDouble¶

This function returns the double value of the string received.

Syntax

<DOUBLE> math:parseDouble(<STRING> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue string);
select math:parseDouble(inValue) as output    
from InValueStream
insert into OutMediationStream;

If the inValue in the input stream holds a value, this function converts it into the corresponding double value and directs it to the output stream, OutMediationStream. For example, parseDouble(\"123\") returns 123.0.

parseFloat¶

This function returns the float value of the received string.

Syntax

<FLOAT> math:parseFloat(<STRING> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue string);
select math:parseFloat(inValue) as output    
from InValueStream
insert into OutMediationStream;

The function converts the input value given in inValue,into its corresponding float value and directs the result into the output stream, OutMediationStream. For example, parseFloat(\"123\") returns 123.0.

parseInt¶

This function returns the integer value of the received string.

Syntax

<INT> math:parseInt(<STRING> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue string);
select math:parseInt(inValue) as output    
from InValueStream
insert into OutMediationStream;

The function converts the inValue into its corresponding integer value and directs the output to the output stream, OutMediationStream. For example, parseInt("123") returns 123.

parseLong¶

This function returns the long value of the string received.

Syntax

<LONG> math:parseLong(<STRING> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue string);
select math:parseLong(inValue) as output    
from InValueStream
insert into OutMediationStream;

The function converts the inValue to its corresponding long value and directs the result to the output stream, OutMediationStream. For example, parseLong("123") returns 123.

pi¶

This function returns the java.lang.Math.PI constant, which is the closest value to pi, i.e., the ratio of the circumference of a circle to its diameter.

Syntax

<DOUBLE> math:pi()

EXAMPLE 1

define stream InValueStream (inValue double);
select math:pi() as piValue    
from InValueStream
insert into OutMediationStream;

pi() always returns 3.141592653589793.

power¶

This function raises the given value to a given power.

Syntax

<DOUBLE> math:power(<INT|LONG|FLOAT|DOUBLE> value, <INT|LONG|FLOAT|DOUBLE> to.power)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue1 double, inValue2 double);
select math:power(inValue1,inValue2) as powerValue    
from InValueStream
insert into OutMediationStream;

This function raises the inValue1 to the power of inValue2 and directs the output to the output stream, OutMediationStream. For example, (5.6d, 3.0d) returns 175.61599999999996.

rand¶

This returns a stream of pseudo-random numbers when a sequence of calls are sent to the rand(). Optionally, it is possible to define a seed, i.e., rand(seed) using which the pseudo-random numbers are generated. These functions internally use the java.util.Random class.

Syntax

<DOUBLE> math:rand()
<DOUBLE> math:rand(<INT|LONG> seed)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (symbol string, price long, volume long);
select math:oct(inValue) as octValue    
from InValueStream select symbol, math:rand() as randNumber
insert into OutMediationStream;

In the example given above, a random double value between 0 and 1 will be generated using math:rand().

round¶

This function returns the value of the input argument rounded off to the closest integer/long value.

Syntax

<INT|LONG> math:round(<FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:round(inValue) as roundValue    
from InValueStream
insert into OutMediationStream;

The function rounds off inValue1 to the closest int/long value and directs the output to the output stream, OutMediationStream. For example, round(3252.353) returns 3252.

signum¶

This returns +1, 0, or -1 for the given positive, zero and negative values respectively. This function wraps the java.lang.Math.signum() function.

Syntax

<INT> math:signum(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:signum(inValue) as sign    
from InValueStream
insert into OutMediationStream;

The function evaluates the inValue given to be positive, negative or zero and directs the result to the output stream, OutMediationStream. For example, signum(-6.32d) returns -1.

sin¶

This returns the sine of the value given in radians. This function wraps the java.lang.Math.sin() function.

Syntax

<DOUBLE> math:sin(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:sin(inValue) as sinValue    
from InValueStream
insert into OutMediationStream;

The function calculates the sine value of the given inValue and directs the output to the output stream, OutMediationStream. For example, sin(6d) returns -0.27941549819892586.

sinh¶

This returns the hyperbolic sine of the value given in radians. This function wraps the java.lang.Math.sinh() function.

Syntax

<DOUBLE> math:sinh(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:sinh(inValue) as sinhValue    
from InValueStream
insert into OutMediationStream;

This function calculates the hyperbolic sine value of inValue and directs the output to the output stream, OutMediationStream. For example, sinh(6d) returns 201.71315737027922.

sqrt¶

This function returns the square-root of the given value. It wraps the java.lang.Math.sqrt()s function.

Syntax

<DOUBLE> math:sqrt(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:sqrt(inValue) as sqrtValue    
from InValueStream
insert into OutMediationStream;

The function calculates the square-root value of the inValue and directs the output to the output stream, OutMediationStream. For example, sqrt(4d) returns 2.

tan¶

This function returns the tan of the given value in radians. It wraps the java.lang.Math.tan() function.

Syntax

<DOUBLE> math:tan(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:tan(inValue) as tanValue    
from InValueStream
insert into OutMediationStream;

This function calculates the tan value of the inValue given and directs the output to the output stream, OutMediationStream. For example, tan(6d) returns -0.29100619138474915.

tanh¶

This function returns the hyperbolic tangent of the value given in radians. It wraps the java.lang.Math.tanh() function.

Syntax

<DOUBLE> math:tanh(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:tanh(inValue) as tanhValue    
from InValueStream
insert into OutMediationStream;

If the inVaue in the input stream is given, this function calculates the hyperbolic tangent value of the same and directs the output to OutMediationStream stream. For example, tanh(6d) returns 0.9999877116507956.

toDegrees¶

This function converts the value given in radians to degrees. It wraps the java.lang.Math.toDegrees() function.

Syntax

<DOUBLE> math:toDegrees(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:toDegrees(inValue) as degreesValue    
from InValueStream
insert into OutMediationStream;

The function converts the inValue in the input stream from radians to degrees and directs the output to OutMediationStream output stream. For example, toDegrees(6d) returns 343.77467707849394.

toRadians¶

This function converts the value given in degrees to radians. It wraps the java.lang.Math.toRadians() function.

Syntax

<DOUBLE> math:toRadians(<INT|LONG|FLOAT|DOUBLE> p1)

QUERY PARAMETERS

EXAMPLE 1

define stream InValueStream (inValue double);
select math:toRadians(inValue) as radiansValue    
from InValueStream
insert into OutMediationStream;

This function converts the input, from degrees to radians and directs the result to OutMediationStream output stream. For example, toRadians(6d) returns 0.10471975511965977.