Math.log()
syntax: |
Math.log(x) |
where: |
x - a number.greater than zero.
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return: |
number - an implementation-dependent approximation of the natural logarithm of x.
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description: |
If a negative number is passed to Math.log(), the return is NaN
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example: |
//The natural log of x is returned //in the following function: function compute_log(x) { return Math.log(x) } //If the argument is less than 0 or NaN, //the result is NaN //If the argument is +0 or -0, //the result is -infinity //If the argument is 1, the result is +0 //If the argument is +infinity, //the result is +infinity |