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Removed unecessary sqrt

feature/19
Daniel Warner 2012-01-04 22:25:36 +00:00
parent daf729f8f4
commit a5aefed2bf
1 changed files with 2 additions and 2 deletions
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libsgp4/SGP4.cpp
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@ -427,13 +427,13 @@ Eci SGP4::CalculateFinalPositionVelocity(const Julian& dt, const double& e,
const double& x3thm1, const double& x1mth2, const double& x7thm1, const double& x3thm1, const double& x1mth2, const double& x7thm1,
const double& cosio, const double& sinio) const const double& cosio, const double& sinio) const
{ {
const double beta = sqrt(1.0 - e * e); const double beta2 = 1.0 - e * e;
const double xn = kXKE / pow(a, 1.5); const double xn = kXKE / pow(a, 1.5);
/* /*
* long period periodics * long period periodics
*/ */
const double axn = e * cos(omega); const double axn = e * cos(omega);
const double temp11 = 1.0 / (a * beta * beta); const double temp11 = 1.0 / (a * beta2);
const double xll = temp11 * xlcof * axn; const double xll = temp11 * xlcof * axn;
const double aynl = temp11 * aycof; const double aynl = temp11 * aycof;
const double xlt = xl + xll; const double xlt = xl + xll;