THE PACKAGE JAVA.LANG

java.lang.Math

20.11

If the first argument is positive infinity and the second argument is negative

infinity, then the result is the

double

 value closest to 3

4 .

If the first argument is negative infinity and the second argument is positive

infinity, then the result is the

double

 value closest to  

4 .

If both arguments are negative infinity, then the result is the

double

 value

closest to  3

4 .

20.11.10

public static double exp(double a)

This method computes an approximation to the exponential function of the argu 

ment (

e

 raised to the power of the argument, where

e

 is the base of the natural log 

arithms ( 20.11.1)), using the

exp

 algorithm as published in

fdlibm

 (see the

introduction to this section).

Special cases:

If the argument is NaN, then the result is NaN.

If the argument is positive infinity, then the result is positive infinity.

If the argument is negative infinity, then the result is positive zero.

20.11.11

public static double log(double a)

This method computes an approximation to the natural logarithm of the argument,

using the

log

 algorithm as published in

fdlibm

 (see the introduction to this sec 

tion).

Special cases:

If the argument is NaN or less than zero, then the result is NaN.

If the argument is positive infinity, then the result is positive infinity.

If the argument is positive zero or negative zero, then the result is negative

infinity.

20.11.12

public static double sqrt(double a)

Whanne that April with his shoures sote

The droughte of March hath perced to the rote . . .

 Geoffrey Chaucer (1328 1400),

The Canterbury Tales

, Prologue

521