com.supermap.dtf.expression
类 DefaultMathFunction
- java.lang.Object
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- com.supermap.dtf.expression.DefaultMathFunction
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public class DefaultMathFunction extends Object
对 Maths 一些函数的再封装 用以提供默认的数值运算
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方法概要
所有方法 静态方法 具体方法 限定符和类型 方法和说明 static double
abs(double num)
static double
acos(double num)
static double
asin(double num)
static double
atan(double num)
static double
ceil(double num)
static double
cos(double num)
static double
div(float v1, double v2)
提供(相对)精确的除法运算,当发生除不尽的情况的时候,精确到小数点后10位,后面的四舍五入static double
floor(double num)
static double
log(double num)
static double
pow(double num, double num2)
static double
rand()
static double
round(double num)
static double
sin(double num)
static double
sqrt(double num)
static double
tan(double num)
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方法详细资料
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abs
public static double abs(double num)
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div
public static double div(float v1, double v2)
提供(相对)精确的除法运算,当发生除不尽的情况的时候,精确到小数点后10位,后面的四舍五入- 参数:
v1
- 被除数v2
- 除数- 返回:
- 两个参数的商
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sin
public static double sin(double num)
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acos
public static double acos(double num)
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cos
public static double cos(double num)
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asin
public static double asin(double num)
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tan
public static double tan(double num)
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atan
public static double atan(double num)
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ceil
public static double ceil(double num)
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floor
public static double floor(double num)
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pow
public static double pow(double num, double num2)
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sqrt
public static double sqrt(double num)
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rand
public static double rand()
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log
public static double log(double num)
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round
public static double round(double num)
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