andreasgerstmayr commented on code in PR #16547:
URL: https://github.com/apache/echarts/pull/16547#discussion_r1501141220


##########
src/scale/Log.ts:
##########
@@ -36,9 +36,28 @@ const roundingErrorFix = numberUtil.round;
 const mathFloor = Math.floor;
 const mathCeil = Math.ceil;
 const mathPow = Math.pow;
-
 const mathLog = Math.log;
 
+/**
+ * symmetric log, allowing negative values for logarithmic scales
+ */
+function symMathLog(x: number): number {
+    if (x >= 0) {
+        return mathLog(x);
+    }

Review Comment:
   Good catch! I've updated the PR. Thank you!



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