対数
y = log10(x)
arrays of real or complex numbers, of any number of dimensions and of any identical sizes.
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(x)
y(i,j)=log10(x(i,j))
log10(…) can be overloaded for unsupported input types.
log10(…)
10.^log10([1,%i,-1,-%i])