1*59599516SKenneth E. Jansen #include <math.h> 2*59599516SKenneth E. Jansen 3*59599516SKenneth E. Jansen void diffVt(double vec1[3],double vec2[3], double ans[3]); 4*59599516SKenneth E. Jansen void crossProd(double a[3], double b[3], double ans[3]); 5*59599516SKenneth E. Jansen double dotProd(double a[3], double b[3]); 6*59599516SKenneth E. Jansen double vecMag(double a[3]); 7*59599516SKenneth E. Jansen int vecEqual(double a[3], double b[3]); 8*59599516SKenneth E. Jansen 9*59599516SKenneth E. Jansen 10*59599516SKenneth E. Jansen 11