I was wrong! Degree 12!
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1 changed files with 3 additions and 2 deletions
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@ -16,7 +16,7 @@
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double cos(double x) {
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double pi = M_PI; /* Really, me?! -Kat */
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int temp;
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double deg_2, deg_4, deg_6, deg_8, deg_10;
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double deg_2, deg_4, deg_6, deg_8, deg_10, deg_12;
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double cosine;
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if(x < 0) x = -x;
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@ -43,6 +43,7 @@ double cos(double x) {
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deg_6 = deg_4 * deg_2 * 2 / (6 * 5);
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deg_8 = deg_6 * deg_2 * 2 / (8 * 7);
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deg_10 = deg_8 * deg_2 * 2 / (10 * 9);
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deg_12 = deg_10 * deg_2 * 2 / (12 * 11);
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/*
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In case you aren't familiar with the theory of a Taylor
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@ -74,7 +75,7 @@ double cos(double x) {
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even function, we don't need any terms less than 0, so
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why *center* at zero and include negatives?
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*/
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cosine = -1 + deg_2 - deg_4 + deg_6 - deg_8 + deg_10;
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cosine = -1 + deg_2 - deg_4 + deg_6 - deg_8 + deg_10 - deg_12;
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return cosine;
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}
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