scratchfoundation/paper.js
1
0
Fork 0
mirror of https://github.com/scratchfoundation/paper.js.git synced 2025-01-04 03:45:58 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Prevent invalid invinite solutions in Numerical.solveQuadratic()

Browse source 
Closes #708
This commit is contained in:
Jürg Lehni 2015-06-16 12:30:25 +02:00
parent e3f04478d9
commit ce41447793
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/util/Numerical.js
View file

@ -176,12 +176,12 @@ var Numerical = new function() {
B = b, B = b,
D; D;
b /= 2; b /= 2;
D = b * b - a * c; // Discriminant D = b * b - a * c; // Discriminant
/* /*
* If the discriminant is very small, we can try to pre-condition * If the discriminant is very small, we can try to pre-condition
* the coefficients, so that we may get better accuracy * the coefficients, so that we may get better accuracy
*/ */
if (abs(D) < MACHINE_EPSILON) { if (D !== 0 && abs(D) < MACHINE_EPSILON) {
// If the geometric mean of the coefficients is small enough // If the geometric mean of the coefficients is small enough
var pow = Math.pow, var pow = Math.pow,
gmC = pow(abs(a*b*c), 1/3); gmC = pow(abs(a*b*c), 1/3);