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double __log (
  double val);   /* value to take natural logarithm of */

The __log debugger function calculates the natural logarithm for the floating-point number val. The logarithm is the exponent to which the base (e or 2.718282... in the case of natural logs) must be raised to equal val. Or,

loge ex = val

Return Value

The __log function returns the floating-point natural logarithm of val.

See Also

__exp, __log10

> __log(3.3);
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