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a2e9d8efd6
approximations. We neglect the real or imaginary parts when it is neglectable compared to the input.
33 lines
1.7 KiB
C++
33 lines
1.7 KiB
C++
#include <poincare/hyperbolic_arc_cosine.h>
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#include <poincare/complex.h>
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#include <poincare/layout_helper.h>
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#include <poincare/serialization_helper.h>
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#include <cmath>
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namespace Poincare {
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constexpr Expression::FunctionHelper HyperbolicArcCosine::s_functionHelper;
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Layout HyperbolicArcCosineNode::createLayout(Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
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return LayoutHelper::Prefix(HyperbolicArcCosine(this), floatDisplayMode, numberOfSignificantDigits, HyperbolicArcCosine::s_functionHelper.name());
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}
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int HyperbolicArcCosineNode::serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
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return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, HyperbolicArcCosine::s_functionHelper.name());
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}
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template<typename T>
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Complex<T> HyperbolicArcCosineNode::computeOnComplex(const std::complex<T> c, Preferences::ComplexFormat, Preferences::AngleUnit angleUnit) {
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std::complex<T> result = std::acosh(c);
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/* asinh has a branch cut on ]-inf, 1]: it is then multivalued
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* on this cut. We followed the convention chosen by the lib c++ of llvm on
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* ]-inf+0i, 1+0i] (warning: atanh takes the other side of the cut values on
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* ]-inf-0i, 1-0i[).*/
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return Complex<T>::Builder(ApproximationHelper::NeglectRealOrImaginaryPartIfNeglectable(result, c));
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}
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template Complex<float> Poincare::HyperbolicArcCosineNode::computeOnComplex<float>(std::complex<float>, Preferences::ComplexFormat, Preferences::AngleUnit);
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template Complex<double> Poincare::HyperbolicArcCosineNode::computeOnComplex<double>(std::complex<double>, Preferences::ComplexFormat complexFormat, Preferences::AngleUnit);
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}
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