Trader 関数
PHP Manual

trader_ln

(PECL trader >= 0.2.0)

trader_lnVector Log Natural

説明

array trader_ln ( array $real )

Calculates the natural logarithm for each value in real and returns the resulting array.

パラメータ

real

実数値の配列

返り値

Returns an array with calculated data or false on failure.


Trader 関数
PHP Manual