fix: Matrix inverse not working #5

inbrowser · Nov 3, 2021 · c5d2256 · c5d2256 · DataSaiyentist · Nov 3, 2021
1 parent c0b2270
commit c5d2256
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 6 deletions.
diff --git a/_includes/_math/utils/generate_table.html b/_includes/_math/utils/generate_table.html
@@ -13,7 +13,7 @@
                     // hide
                     td.hidden = true;
                 } else if (td.set === undefined) { // already created?
-                    td.innerHTML = `<input type=\"number\" style="width: 50px;" value="">`;
+                    td.innerHTML = `<input type=\"text\" style="width: 50px;" value="">`;
                     td.set = true;
                 } else if (td.hidden) {
                     td.hidden = false;
@@ -52,10 +52,8 @@
             for (const cell of row.cells) {
                 let value = cell.children[0].value;
                 // empty => '0'
-                if (value === '') { value = '0' }
-                value = Number(value);
-                // NaN => 0
-                if (Number.isNaN(value)) value = 0;
+                if (value === '') { value = 0 }
+				else value = mathjs.parse(value).evaluate();
                 rowArray.push(value);
             }
             array.push(rowArray);

diff --git a/matrix/operations/inverse.html b/matrix/operations/inverse.html
@@ -47,7 +47,10 @@ <h1 class="text-center text-color">{{ page.title }}</h1>
     function to_fractions(A_inv) {
         for (const i in A_inv) {
             for (const j in A_inv[i]) {
-                A_inv[i][j] = mathjs.format(mathjs.fraction(A_inv[i][j]), { fraction: 'ratio' })
+				let v = A_inv[i][j];
+				if (v !== 0 && (v = mathjs.fraction(v)).d !== 1) {
+					A_inv[i][j] = mathjs.format(v, { fraction: 'ratio' })
+                }
             }
         }
         return A_inv;