slepc-main 2024-11-09

SlepcAbs

Returns sqrt(x**2+y**2), taking care not to cause unnecessary overflow. It is based on LAPACK's DLAPY2.

static inline PetscReal SlepcAbs(PetscReal x,PetscReal y)

Not Collective

x,y

- the real numbers

return

- the result

This function is not available from Fortran.

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