yes, b, c and d are the coefficients of i, j and k
it says that a is less than or equal to 1?
so, n = i + j + k, then b, c and d = sin(alpha/2)? and a = cos(alpha/2)? i can see that much, but i can't see how to get one from the other
hi, and thanks for reading. hh, and this isn't homework, its just something I've been wondering about.
i've been flicking through a linear algebra book, I'm trying to learn it by myself, and I've come across this question which has completely stumped me:
show that every quaternion z, where...