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88 → 65 using @miles' formula 65 → 64 using @Neil's formula
#define d(w,x,y,z)1737*acos(sincos(w)*sin(-y)+cos(w)*cos(y)*cos*(cos(z-x)-1))
Try it online!Try it online!
88 → 65 using @miles' formula
#define d(w,x,y,z)1737*acos(sin(w)*sin(y)+cos(w)*cos(y)*cos(z-x))
Try it online!
#define d(w,x,y,z)1737*acos(cos(w-y)+cos(w)*cos(y)*(cos(z-x)-1))
#define d(w,x,y,z)3474*asin(sqrt(pow1737*acos(sin(y/2-w/2),2*sin(y)+cos(w)*cos(y)*pow(sin*cos(z/2-x/2),2)))
#define d(w,x,y,z)3474*asin(sqrt(pow(sin(y/2-w/2),2)+cos(w)*cos(y)*pow(sin(z/2-x/2),2)))
double#define d(w,x,y,z;d(z){return.5+3474*asin3474*asin(sqrt(pow(sin(y/2-w/2),2)+cos(w)*cos(y)*pow(sin(z/2-x/2),2)));}
double w,x,y,z;d(){return.5+3474*asin(sqrt(pow(sin(y/2-w/2),2)+cos(w)*cos(y)*pow(sin(z/2-x/2),2)));}
