quatprod(a,b)

Calculate product of two quaternions

The quatprod(a,b) function returns the quaternion product of quaternions a and b. Here the inputs a and b are vectors of elements of quaternions respectively, e.g. a = [a0,a1,a2,a3] and b = [b0,b1,b2,b3]. It returns a vector of elements of the resulting quaternion f = [f0,f1,f2,f3]. Thus, a = a0+i*a1+j*a2+k*a3, b = b0+i*b1+j*b2+k*b3 and f = f0+i*f1+j*f2+k*f3.