SlepcAbsEigenvalue#
Returns the absolute value of a complex number given its real and imaginary parts.
Synopsis#
Not Collective
Input parameters#
x - the real part of the complex number
y - the imaginary part of the complex number
Notes#
This function computes \(\sqrt{x^2+y^2}\), taking care not to cause unnecessary
overflow. It is based on LAPACK’s DLAPY2.
In complex scalars, only the first argument is used, i.e., the result is \(|x|\).
Fortran Note#
This function is not available from Fortran.
Level#
developer
Location#
Examples#
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