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Remove unnecessary calculation

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sapics 2015-10-24 11:36:21 +09:00 committed by Jürg Lehni
parent c0a5739254
commit 0050984d83
1 changed files with 1 additions and 5 deletions
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6
src/util/Numerical.js
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@ -318,7 +318,7 @@ var Numerical = new function() {
qd = (tmp + b1) * x + c2;
q = c2 * x + d;
// Get a good initial approximation.
t = q /a;
t = q / a;
r = pow(abs(t), 1/3);
s = t < 0 ? -1 : 1;
t = -qd / a;
@ -337,10 +337,6 @@ var Numerical = new function() {
// Newton's. Divide by ec to avoid x0 crossing over a
// root.
x0 = qd === 0 ? x : x - q / qd / ec;
if (x0 === x) {
x = x0;
break;
}
} while (s * x0 > s * x);
// Adjust the coefficients for the quadratic.
if (abs(a) * x * x > abs(d / x)) {