Class ExsltMath
xmlns:math="http://exslt.org/math"The documentation for each function has been copied from the relevant EXSLT Implementer page.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic double
abs
(double num) The math:abs function returns the absolute value of a number.static double
acos
(double num) The math:acos function returns the arccosine value of a number.static double
asin
(double num) The math:asin function returns the arcsine value of a number.static double
atan
(double num) The math:atan function returns the arctangent value of a number.static double
atan2
(double num1, double num2) The math:atan2 function returns the angle ( in radians ) from the X axis to a point (y,x).static double
The math:constant function returns the specified constant to a set precision.static double
cos
(double num) The math:cos function returns cosine of the passed argument.static double
exp
(double num) The math:exp function returns e (the base of natural logarithms) raised to a power.static NodeList
The math:highest function returns the nodes in the node set whose value is the maximum value for the node set.static double
log
(double num) The math:log function returns the natural logarithm of a number.static NodeList
The math:lowest function returns the nodes in the node set whose value is the minimum value for the node set.static double
The math:max function returns the maximum value of the nodes passed as the argument.static double
The math:min function returns the minimum value of the nodes passed as the argument.static double
power
(double num1, double num2) The math:power function returns the value of a base expression taken to a specified power.static double
random()
The math:random function returns a random number from 0 to 1.static double
sin
(double num) The math:sin function returns the sine of the number.static double
sqrt
(double num) The math:sqrt function returns the square root of a number.static double
tan
(double num) The math:tan function returns the tangent of the number passed as an argument.
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Constructor Details
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ExsltMath
public ExsltMath()
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Method Details
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max
The math:max function returns the maximum value of the nodes passed as the argument. The maximum value is defined as follows. The node set passed as an argument is sorted in descending order as it would be by xsl:sort with a data type of number. The maximum is the result of converting the string value of the first node in this sorted list to a number using the number function.If the node set is empty, or if the result of converting the string values of any of the nodes to a number is NaN, then NaN is returned.
- Parameters:
nl
- The NodeList for the node-set to be evaluated.- Returns:
- the maximum value found, NaN if any node cannot be converted to a number.
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min
The math:min function returns the minimum value of the nodes passed as the argument. The minimum value is defined as follows. The node set passed as an argument is sorted in ascending order as it would be by xsl:sort with a data type of number. The minimum is the result of converting the string value of the first node in this sorted list to a number using the number function.If the node set is empty, or if the result of converting the string values of any of the nodes to a number is NaN, then NaN is returned.
- Parameters:
nl
- The NodeList for the node-set to be evaluated.- Returns:
- the minimum value found, NaN if any node cannot be converted to a number.
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highest
The math:highest function returns the nodes in the node set whose value is the maximum value for the node set. The maximum value for the node set is the same as the value as calculated by math:max. A node has this maximum value if the result of converting its string value to a number as if by the number function is equal to the maximum value, where the equality comparison is defined as a numerical comparison using the = operator.If any of the nodes in the node set has a non-numeric value, the math:max function will return NaN. The definition numeric comparisons entails that NaN != NaN. Therefore if any of the nodes in the node set has a non-numeric value, math:highest will return an empty node set.
- Parameters:
nl
- The NodeList for the node-set to be evaluated.- Returns:
- node-set with nodes containing the maximum value found, an empty node-set if any node cannot be converted to a number.
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lowest
The math:lowest function returns the nodes in the node set whose value is the minimum value for the node set. The minimum value for the node set is the same as the value as calculated by math:min. A node has this minimum value if the result of converting its string value to a number as if by the number function is equal to the minimum value, where the equality comparison is defined as a numerical comparison using the = operator.If any of the nodes in the node set has a non-numeric value, the math:min function will return NaN. The definition numeric comparisons entails that NaN != NaN. Therefore if any of the nodes in the node set has a non-numeric value, math:lowest will return an empty node set.
- Parameters:
nl
- The NodeList for the node-set to be evaluated.- Returns:
- node-set with nodes containing the minimum value found, an empty node-set if any node cannot be converted to a number.
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abs
public static double abs(double num) The math:abs function returns the absolute value of a number.- Parameters:
num
- A number- Returns:
- The absolute value of the number
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acos
public static double acos(double num) The math:acos function returns the arccosine value of a number.- Parameters:
num
- A number- Returns:
- The arccosine value of the number
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asin
public static double asin(double num) The math:asin function returns the arcsine value of a number.- Parameters:
num
- A number- Returns:
- The arcsine value of the number
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atan
public static double atan(double num) The math:atan function returns the arctangent value of a number.- Parameters:
num
- A number- Returns:
- The arctangent value of the number
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atan2
public static double atan2(double num1, double num2) The math:atan2 function returns the angle ( in radians ) from the X axis to a point (y,x).- Parameters:
num1
- The X axis valuenum2
- The Y axis value- Returns:
- The angle (in radians) from the X axis to a point (y,x)
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cos
public static double cos(double num) The math:cos function returns cosine of the passed argument.- Parameters:
num
- A number- Returns:
- The cosine value of the number
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exp
public static double exp(double num) The math:exp function returns e (the base of natural logarithms) raised to a power.- Parameters:
num
- A number- Returns:
- The value of e raised to the given power
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log
public static double log(double num) The math:log function returns the natural logarithm of a number.- Parameters:
num
- A number- Returns:
- The natural logarithm of the number
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power
public static double power(double num1, double num2) The math:power function returns the value of a base expression taken to a specified power.- Parameters:
num1
- The basenum2
- The power- Returns:
- The value of the base expression taken to the specified power
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random
public static double random()The math:random function returns a random number from 0 to 1.- Returns:
- A random double from 0 to 1
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sin
public static double sin(double num) The math:sin function returns the sine of the number.- Parameters:
num
- A number- Returns:
- The sine value of the number
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sqrt
public static double sqrt(double num) The math:sqrt function returns the square root of a number.- Parameters:
num
- A number- Returns:
- The square root of the number
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tan
public static double tan(double num) The math:tan function returns the tangent of the number passed as an argument.- Parameters:
num
- A number- Returns:
- The tangent value of the number
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constant
The math:constant function returns the specified constant to a set precision. The possible constants are:PI E SQRRT2 LN2 LN10 LOG2E SQRT1_2
- Parameters:
name
- The name of the constantprecision
- The precision- Returns:
- The value of the specified constant to the given precision
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