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authorjmz <jmz@FreeBSD.org>1997-04-13 01:16:58 +0000
committerjmz <jmz@FreeBSD.org>1997-04-13 01:16:58 +0000
commit438bdd8a9c9d390f13a4b05980c19b18e974d16c (patch)
treee809113557ae09d5ce13e9239ae81534708bd955 /lib/libF77/z_div.c
parent5d93c9d5fb208d10eacf608b44ee02d3cd5b4a16 (diff)
downloadFreeBSD-src-438bdd8a9c9d390f13a4b05980c19b18e974d16c.zip
FreeBSD-src-438bdd8a9c9d390f13a4b05980c19b18e974d16c.tar.gz
Upgrade to the 1997/02/26 version.
Diffstat (limited to 'lib/libF77/z_div.c')
-rw-r--r--lib/libF77/z_div.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/lib/libF77/z_div.c b/lib/libF77/z_div.c
index fd53733..ed7ee66 100644
--- a/lib/libF77/z_div.c
+++ b/lib/libF77/z_div.c
@@ -8,29 +8,29 @@ extern void sig_die(char*, int);
void z_div(doublecomplex *c, doublecomplex *a, doublecomplex *b)
#endif
{
-double ratio, den;
-double abr, abi;
+ double ratio, den;
+ double abr, abi;
+ double ai = a->i, ar = a->r, bi = b->i, br = b->r;
-if( (abr = b->r) < 0.)
- abr = - abr;
-if( (abi = b->i) < 0.)
- abi = - abi;
-if( abr <= abi )
- {
- if(abi == 0)
- sig_die("complex division by zero", 1);
- ratio = b->r / b->i ;
- den = b->i * (1 + ratio*ratio);
- c->r = (a->r*ratio + a->i) / den;
- c->i = (a->i*ratio - a->r) / den;
- }
+ if( (abr = br) < 0.)
+ abr = - abr;
+ if( (abi = bi) < 0.)
+ abi = - abi;
+ if( abr <= abi )
+ {
+ if(abi == 0)
+ sig_die("complex division by zero", 1);
+ ratio = br / bi ;
+ den = bi * (1 + ratio*ratio);
+ c->r = (ar*ratio + ai) / den;
+ c->i = (ai*ratio - ar) / den;
+ }
-else
- {
- ratio = b->i / b->r ;
- den = b->r * (1 + ratio*ratio);
- c->r = (a->r + a->i*ratio) / den;
- c->i = (a->i - a->r*ratio) / den;
+ else
+ {
+ ratio = bi / br ;
+ den = br * (1 + ratio*ratio);
+ c->r = (ar + ai*ratio) / den;
+ c->i = (ai - ar*ratio) / den;
+ }
}
-
-}
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