lapy2(3) Library Functions Manual lapy2(3)

lapy2 - lapy2: robust sqrt( x^2 + y^2 )


double precision function dlapy2 (x, y)
DLAPY2 returns sqrt(x2+y2). real function slapy2 (x, y)
SLAPY2 returns sqrt(x2+y2).

DLAPY2 returns sqrt(x2+y2).

Purpose:

 DLAPY2 returns sqrt(x**2+y**2), taking care not to cause unnecessary
 overflow and unnecessary underflow.

Parameters

X 
          X is DOUBLE PRECISION

Y

          Y is DOUBLE PRECISION
          X and Y specify the values x and y.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 62 of file dlapy2.f.

SLAPY2 returns sqrt(x2+y2).

Purpose:

 SLAPY2 returns sqrt(x**2+y**2), taking care not to cause unnecessary
 overflow and unnecessary underflow.

Parameters

X 
          X is REAL

Y

          Y is REAL
          X and Y specify the values x and y.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 62 of file slapy2.f.

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Version 3.12.0 LAPACK