Lines Matching full:coordinates
127 The affine coordinates for a point describe a point in terms of its x and y
129 coordinates for the point B<p> defined over the curve given in B<group>. The
131 may be NULL, to the corresponding coordinates of B<p>.
143 As well as the affine coordinates, a point can alternatively be described in
144 terms of its Jacobian projective coordinates (for Fp curves only). Jacobian
145 projective coordinates are expressed as three values x, y and z. Working in
147 operations. A mapping exists between Jacobian projective coordinates and
148 affine coordinates. A Jacobian projective coordinate (x, y, z) can be written
150 projective from affine coordinates is simple. The coordinate (x, y) is mapped
152 to set or get the projective coordinates in older versions use
159 Points can also be described in terms of their compressed coordinates. For a