Renamed E

charge/charge.c

@@ -17,8 +17,8 @@ bool compute_e(charge_t c, vec2 p, double eps, vec2 *e)
 {
     vec2 qP = vec2_sub(p, c.pos);
     double norm = vec2_norm(qP);
-    double bigE = K * c.q / pow(norm, 2);    // E = k * (Q / r^2)
-    *e = vec2_mul(vec2_div(qP, norm), bigE); // e = E * qP / ||qP||
+    double E = K * c.q / pow(norm, 2);    // E = k * (Q / r^2)
+    *e = vec2_mul(vec2_div(qP, norm), E); // e = E * qP / ||qP||
     return (norm > eps);
 }
 

charge/charge.h

@@ -12,7 +12,6 @@
 #define _CHARGE_H_
 
 #define K 8.988e9
-#define E 1.602e-19
 #define CHARGE_RADIUS 10
 #define EPS 0.025