Labels:text | handwriting | font | letter | screenshot | calligraphy | document OCR: 1. P+ 0- 0 + P = Pfor all PEE(Z). 2. If P = (x,y) E E(Z ), then (x,y) + (x ,- )) = 0. (The point (x- y) is denoted by -P, and is called the negative of P; ob- serve that -P is Indeed a point on the curve?) 3. Let P= (x, y)) e E( ) and Q= (X,y)) € E(2.), where P # -Q. Then P + Q = (x), y3). where xg = 72 -X1 - X2 and 3x.2+7₴ 2y. TP=Q Figure 4: The addition rule.
