Update index.html

Author: Gmac4247

index.html

@@ -983,7 +983,7 @@ <h4 style="font-size:160%;margin:7px">Trigonometry</h4>
 
   let radian = null;
 
-  if (x > 0.706) {
+  if (x >= 0.707) {
     // Direct match via sine
     const match = closestValue(x, 'sin');
     if (!match?.angle) return null;
@@ -1008,7 +1008,7 @@ <h4 style="font-size:160%;margin:7px">Trigonometry</h4>
 
   let radian = null;
 
-  if (x < 0.708) {
+  if (x <= 0.707) {
     // Direct match via cosine
     const match = closestValue(x, 'cos');
     if (!match?.angle) return null;
@@ -1033,7 +1033,7 @@ <h4 style="font-size:160%;margin:7px">Trigonometry</h4>
 
   let radian = null;
 
-  if (x > 1) {
+  if (x >= 1) {
     // Direct match
     const match = closestValue(x, 'tan');
     if (!match?.angle) return null;