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return point (q[0], q[1]); }
84
83
point inverse_transform (point p) {
87
86
point jacobian (point p, point v, bool &error) {
88
87
(void) p; error= false; return j * v; }
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88
point jacobian_of_inverse (point p, point v, bool &error) {
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89
(void) p; (void) v; (void) error;
94
92
double direct_bound (point p, double eps) { return eps; }
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93
double inverse_bound (point p, double eps) { return eps; }