isalmostreal edit page

Check whether an array A is nearly real valued or not. Therefore an array with very small imaginary part is also seen as real valued.

Syntax

out = isalmostreal(A)
out = isalmostreal(A,'norm',Inf)
out = isalmostreal(A,'norm',2,'precision',10)

Input

A double

Output

out logical

Options

precision exponential treshold
norm is used to compare the real and imaginary parts of A (default 1)