I'm trying to understand how to multiply a point by a scalar to get a point in elliptic curve cryptography. Here's an example from my textbook.
The group is E257(0, -4). That's shorthand for y2 = x3 + 0 x - 4 (mod 257)
According to the book,
101(2, 2) = (197, 167)
How can I get from 101(2, 2) to (197, 167)? How can I get from cP to Q where c is a constant scalar and P and Q are points?