MATLAB Function Reference |

Compute `log(1+x)`

accurately for small values of `x`

**Syntax**

**Description**

`y = log1p(x)`

computes `log(1+x)`

, compensating for the roundoff in `1+x`

. log1p(x) is more accurate than log(1+x) for small values of x. For small `x`

, `log1p(x)`

is approximately `x`

, whereas `log(1+x)`

can be zero.

**See Also**

log10 | log2 |

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