# | Line 88 | Line 88 | int main(int argc, char* argv[]){ | |
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88 | ||
89 | r = sqrt(x*x + y*y + z*z); | |
90 | costheta = z/r; | |
91 | < | phi = atan(y/x); |
91 | > | phi = atan2(y,x); |
92 | ||
93 | sigmaShape = shape->getSigmaAt(costheta, phi); | |
94 | sShape = shape->getSAt(costheta, phi); |
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