17 lines
341 B
C
17 lines
341 B
C
#ifndef lint
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static char sccsid[] = "@(#)d_atn2d.c 1.1 92/07/30 SMI"; /* from UCB 1.1" */
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#endif
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/*
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* VMS Fortran compatibility function:
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* two-argument arc tangent in degrees.
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*/
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#include <math.h>
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static double pitod = 57.2957795130823208767981548141; /* 180/pi */
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double d_atn2d(y,x)
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double *y, *x;
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{
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return pitod*atan2(*y,*x);
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}
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