- MathAbs
- MathArccos
- MathArcsin
- MathArctan
- MathArctan2
- MathClassify
- MathCeil
- MathCos
- MathExp
- MathFloor
- MathLog
- MathLog10
- MathMax
- MathMin
- MathMod
- MathPow
- MathRand
- MathRound
- MathSin
- MathSqrt
- MathSrand
- MathTan
- MathIsValidNumber
- MathExpm1
- MathLog1p
- MathArccosh
- MathArcsinh
- MathArctanh
- MathCosh
- MathSinh
- MathTanh
- MathSwap
MathLog1p
Returns the value of the expression MathLog(1+x).
double MathLog1p(
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Parameters
value
[in] The value, the logarithm of which is to be calculated.
Return Value
The natural logarithm of the value (value + 1) if successful. If value is < -1, the function returns NaN (undefined value). If value is equal to -1, the function returns INF (infinity).
Note
At values of x close to 0, the MathLog1p(x) function generates much more accurate values than the MathLog(1+x) function.
Instead of the MathLog1p() function you can use the log1p() function.
See also