Scilab 5.5.2
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
isreal
check if a variable has real or complex entries
Calling Sequence
t=isreal(x) t=isreal(x,eps)
Arguments
- x
vector or matrix with floating point entries or coefficients
- t
a boolean
Description
isreal(x)
returns true if x
is
stored as a real variable and false if x
is stored with
an (eventually zero) imaginary part.
isreal(x,eps)
returns true if
x
is stored as a real variable or if maximum absolute
value of imaginary floating points is less or equal than
eps
.
Examples
isreal([1 2]) isreal(1+0*%i) isreal(1+0*%i,0) isreal(1+%s) isreal(sprand(3,3,0.1))
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