Update index.html

Author: Gmac4247

index.html

@@ -765,8 +765,8 @@ <h3 itemprop="name" style="margin:7px">Trigonometry</h3>
 <meta itemprop="name" content="Trigonometry engine">
 <meta itemprop="isAccessibleForFree" content="true">
 <meta itemprop="description" content="Lookup-based trigonometry value finder for the calculator apps. Values aligned to circumference=6.4radius with ~ ± rad / 100 accuracy.">
-<meta itemprop="disambiguatingDescription" content="The steps are limited by the number of entries. However, aligned to circumference=3.2diameter makes the arc values more accurate than tools that produce results with many decimals for any value but based on the pi=3.14...">
-<meta itemprop="usageInfo" content="Defines independent trigonometric functions.">
+<meta itemprop="disambiguatingDescription" content="The arc values are more accurate than the results of other tools with many decimals for any value but based on the pi=3.14...">
+<meta itemprop="usageInfo" content="Defines independent trigonometric functions. The steps are limited by the number of entries.">
 <script>
 
 // ---- Trigonometry ----
@@ -3316,7 +3316,7 @@ <h3 itemprop="name" style="margin:7px">Surface Area of a Sphere</h3>
 <p style="margin:6px">The image is an illustration.</p>
 </div>
 <br>
-<p itemprop="disambiguatingDescription" style="margin:6px">The conventional formula for the surface area of a sphere was allegedly developed from the " volume = 4/3×pi×radius³ " formula.</p>
+<p itemprop="disambiguatingDescription" style="margin:6px">The conventional "4×pi×radius²" formula for the surface area of a sphere was allegedly developed from the " volume = 4/3×pi×radius³ " formula.</p>
 <br>
 <p itemprop="description" style="margin:6px"><strong>
 Unlock the true formula to calculate the surface area of a sphere.</strong></p>