Mercurial > cpython-lru_cache-weakref

annotate Python/hypot.c @ 7464:021237ba5007 legacy-trunk

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Make this work better with a4 paper. Make the table of contents "hot" for PDF output. No additional packages are needed. Move code for \b@code, \e@code into the macros for the verbatim environment directly since they're not used elsewhere. Derive the name of the modules .idx from the jobname. Some clean ups.
author Fred Drake <fdrake@acm.org>
date Wed, 25 Feb 1998 15:29:43 +0000
parents 37d009b1bf45
children f79434ee41fa
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1 /* hypot() replacement */
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2
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3 #include "config.h"
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4 #include "myproto.h"
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5 #include "mymath.h"
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6
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7 double hypot(x, y)
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8 double x;
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9 double y;
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10 {
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11 double yx;
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12
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13 x = fabs(x);
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14 y = fabs(y);
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15 if (x < y) {
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16 double temp = x;
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17 x = y;
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18 y = temp;
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19 }
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20 if (x == 0.)
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21 return 0.;
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22 else {
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23 yx = y/x;
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24 return x*sqrt(1.+yx*yx);
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25 }
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26 }