### How to subtract two points on an elliptic curve?

Please tell me if there is a formula for A-B, (That is, subtraction of two points / minus). I know how two points are added, A + B this addition is described in detail on the Bill Buchanan cryptograph website: https://asecuritysite.com/encryption/ecc_points_add2 Bill Buchanan wrote the formula: In this case we calculate x3 + ax +…

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