Update 0.2.6

etc/math_ext.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include "../utils/logger.h"
+
+#include "math_ext.h"
+
+double Add(double x, double y){
+    return(x + y);
+}
+
+double Sub(double x, double y){
+    return(x - y);
+}
+
+double Mul(double x, double y){
+    return(x * y);
+}
+double Div(double x, double y){
+    if (y == 0.0)
+        return 0.0;
+    else 
+        return(x / y);
+}
+
+double CubeVolume(double a){
+    return pow(a, 3);
+}
+
+double SphereVolume(double r){
+    return (4/3*M_PI*pow(r, 3));
+}