tangent.cpp
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#include <poincare/tangent.h>
#include <poincare/sine.h>
#include <poincare/cosine.h>
#include <poincare/division.h>
#include <poincare/multiplication.h>
#include <poincare/trigonometry.h>
#include <poincare/hyperbolic_tangent.h>
#include <poincare/simplification_engine.h>
extern "C" {
#include <assert.h>
}
#include <cmath>
namespace Poincare {
Expression::Type Tangent::type() const {
return Expression::Type::Tangent;
}
Expression * Tangent::clone() const {
Tangent * a = new Tangent(m_operands, true);
return a;
}
float Tangent::characteristicXRange(Context & context, AngleUnit angleUnit) const {
return Trigonometry::characteristicXRange(this, context, angleUnit);
}
template<typename T>
std::complex<T> Tangent::computeOnComplex(const std::complex<T> c, AngleUnit angleUnit) {
std::complex<T> angleInput = Trigonometry::ConvertToRadian(c, angleUnit);
std::complex<T> res = std::tan(angleInput);
return Trigonometry::RoundToMeaningfulDigits(res);
}
Expression * Tangent::shallowReduce(Context& context, AngleUnit angleUnit) {
Expression * e = Expression::shallowReduce(context, angleUnit);
if (e != this) {
return e;
}
#if MATRIX_EXACT_REDUCING
Expression * op = editableOperand(0);
if (op->type() == Type::Matrix) {
return SimplificationEngine::map(this, context, angleUnit);
}
#endif
Expression * newExpression = Trigonometry::shallowReduceDirectFunction(this, context, angleUnit);
if (newExpression->type() == Type::Tangent) {
const Expression * op[1] = {newExpression->operand(0)};
Sine * s = new Sine(op, true);
Cosine * c = new Cosine(op, true);
Division * d = new Division(s, c, false);
newExpression = newExpression->replaceWith(d, true);
return newExpression->shallowReduce(context, angleUnit);
}
return newExpression;
}
}