Add log10 function

Author: BruceSherwood

GlowScriptOffline/glowscript_libraries/glow.3.2.min.js

@@ -51,7 +51,7 @@ <h1 class="Heading-1"> <font color="#0000A0">Math Functions</font></h1>
         sqrt(x)&nbsp;&nbsp;&nbsp;&nbsp;# square root<br />
         exp(x) &nbsp;&nbsp;&nbsp;&nbsp;# e to the x<br />
         log(x)  &nbsp;&nbsp;&nbsp;&nbsp;# natural log, base e<br />
-        # log(x)/log(10) gives log base 10<br />
+        log10(x)&nbsp;&nbsp;&nbsp;# log base 10<br />
         pow(x,y) &nbsp;&nbsp;# x to the power y<br />
         pi    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;# 3.14159.... <br />
         ceil(x)&nbsp;&nbsp;&nbsp;&nbsp;# round up to nearest integer<br />

docs/VPythonDocs/math.html

@@ -737,6 +737,11 @@
         return v.rotate({angle:angle, axis:axis})
     }
 
+    function log10(x) {
+        const logten = Math.log(10)
+        return log(x)/logten
+    }
+
     // Because RapydScript-NG compiles to the JavaScript string.replace function, which
     //   replaces just one instance rather than multiple instances as in standard Python,
     //   here we implement string.GSrep that acts like standard Python and we replace
@@ -757,6 +762,7 @@
     }
 
     var exports = {
+        log10: log10,
         mag: mag,
         mag2: mag2,
         norm: norm,