log10 対数

## 呼び出し手順

    y = log10(x)

## 引数

x, y

  arrays of real or complex numbers, of any number of dimensions and of any identical sizes.

## 説明

`log10(x)` は,10を底とする"要素毎"の対数 `y(i,j)=log10(x(i,j))`です.

`log10(…)` can be overloaded for unsupported input types.

## 例

    10.^log10([1,%i,-1,-%i])

## 参照

- log
- logm
- hat
- ieee