optimize utils.droots

Pomax · Aug 4, 2024 · b5f81bb · b5f81bb
1 parent 4e76729
commit b5f81bb
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/utils.js b/src/utils.js
@@ -624,7 +624,11 @@ const utils = {
         c = p[2],
         d = a - 2 * b + c;
       if (d !== 0) {
-        const m1 = -sqrt(b * b - a * c),
+        const m1Pow2 = b * b - a * c
+        if (m1Pow2 < 0) {
+          return []
+        }
+        const m1 = -sqrt(m1Pow2),
           m2 = -a + b,
           v1 = -(m1 + m2) / d,
           v2 = -(-m1 + m2) / d;