fix(trailing-zeros): Skip LaTeX-to-AST and AST-to-MathJS conversions …

…for numeric equality checks PD-4410

src/latex-equal.ts

@@ -17,6 +17,8 @@ const lta = new LatexToAst();
 const atm = new AstToMathJs();
 
 export const latexEqual = (a: Latex, b: Latex, opts: Opts) => {
+  const isNumeric = (str: string): boolean => /^-?\d+(\.\d+)?$/.test(str);
+
   if (!a || !b) {
     return false;
   }
@@ -25,6 +27,16 @@ export const latexEqual = (a: Latex, b: Latex, opts: Opts) => {
     return true;
   }
 
+  if (opts.mode === "symbolic" && isNumeric(a) && isNumeric(b)) {
+    const numA = parseFloat(a);
+    const numB = parseFloat(b);
+
+    if (numA === numB) {
+      console.log(numA, numB, "equals");
+      return true;
+    }
+  }
+
   const al = lta.convert(a);
   const bl = lta.convert(b);
 

src/symbolic/index.ts

@@ -71,15 +71,7 @@ export const simplify = (v) => {
 };
 
 const normalize = (a: string | MathNode | any) => {
-
-  let r: string | MathNode | any;
-  if (a.fn && a.fn.name == 'tzn'){
-    r = a.args[0]
-  } else {
-    r = a;
-  }
-
-
+  let r: string | MathNode | any = a;
   let onlyConstant = true;
   let containsFunctionNode = false;
   let containsArrayNode = false;
@@ -138,7 +130,7 @@ const normalize = (a: string | MathNode | any) => {
   if (r.fn !== "equal") {
     try {
       onlyConstant = false;
-     r = rationalize(r, {}, true).expression;
+      r = rationalize(r, {}, true).expression;
     } catch {}
   }