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Backout parts of changeset 6719e56b5bfe9ae4badc9a6e894c5824f663d62e

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(these changes were not intended to be commited)
This commit is contained in:
Gael Guennebaud 2013-08-11 19:26:41 +02:00
parent bffdc491b3
commit 916d29e58f
2 changed files with 2 additions and 2 deletions
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2
unsupported/Eigen/src/AutoDiff/AutoDiffScalar.h
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@ -604,7 +604,7 @@ atan2(const AutoDiffScalar<DerTypeA>& a, const AutoDiffScalar<DerTypeB>& b)
Scalar tmp4 = tmp3/(tmp2+tmp3);
if (tmp4!=0)
ret.derivatives() = (a.value() * b.derivatives() - a.derivatives() * b.value()) * (tmp2+tmp3);
ret.derivatives() = (a.derivatives() * b.value() - a.value() * b.derivatives()) * (tmp2+tmp3);
return ret;
}

2
unsupported/Eigen/src/MatrixFunctions/MatrixPower.h
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@ -299,7 +299,7 @@ MatrixPowerAtomic<MatrixType>::computeSuperDiag(const ComplexScalar& curr, const
ComplexScalar logCurr = log(curr);
ComplexScalar logPrev = log(prev);
int unwindingNumber = ceil((numext::imag(logCurr - logPrev) - M_PI) / (2*M_PI));
ComplexScalar w = numext::atanh2(curr - prev, curr + prev) + ComplexScalar(RealScalar(0), RealScalar(M_PI*unwindingNumber));
ComplexScalar w = numext::atanh2(curr - prev, curr + prev) + ComplexScalar(0, M_PI*unwindingNumber);
return RealScalar(2) * exp(RealScalar(0.5) * p * (logCurr + logPrev)) * sinh(p * w) / (curr - prev);
}