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Modif/epsilon-master/poincare/src/nth_root.cpp 1.95 KB
6663b6c9   adorian   projet complet av...
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  #include <poincare/nth_root.h>
  #include <poincare/division.h>
  #include <poincare/power.h>
  #include <poincare/undefined.h>
  #include "layout/nth_root_layout.h"
  
  extern "C" {
  #include <assert.h>
  }
  #include <cmath>
  
  namespace Poincare {
  
  Expression::Type NthRoot::type() const {
    return Type::NthRoot;
  }
  
  Expression * NthRoot::clone() const {
    NthRoot * a = new NthRoot(m_operands, true);  return a;
  }
  
  Expression * NthRoot::shallowReduce(Context& context, AngleUnit angleUnit) {
    Expression * e = Expression::shallowReduce(context, angleUnit);
    if (e != this) {
      return e;
    }
  #if MATRIX_EXACT_REDUCING
    if (operand(0)->type() == Type::Matrix || operand(1)->type() == Type::Matrix) {
      return replaceWith(new Undefined(), true);
    }
  #endif
    Power * invIndex = new Power(operand(1), new Rational(-1), false);
    Power * p = new Power(operand(0), invIndex, false);
    detachOperands();
    invIndex->shallowReduce(context, angleUnit);
    replaceWith(p, true);
    return p->shallowReduce(context, angleUnit);
  }
  
  ExpressionLayout * NthRoot::createLayout(PrintFloat::Mode floatDisplayMode, int numberOfSignificantDigits) const {
    return new NthRootLayout(operand(0)->createLayout(floatDisplayMode, numberOfSignificantDigits), operand(1)->createLayout(floatDisplayMode, numberOfSignificantDigits), false);
  }
  
  template<typename T>
  Evaluation<T> * NthRoot::templatedApproximate(Context& context, AngleUnit angleUnit) const {
    Evaluation<T> * base = operand(0)->privateApproximate(T(), context, angleUnit);
    Evaluation<T> * index = operand(1)->privateApproximate(T(), context, angleUnit);
    Complex<T> result = Complex<T>::Undefined();
    if (base->type() == Evaluation<T>::Type::Complex && index->type() == Evaluation<T>::Type::Complex) {
      Complex<T> * basec = static_cast<Complex<T> *>(base);
      Complex<T> * indexc = static_cast<Complex<T> *>(index);
      result = Power::compute(*basec, std::complex<T>(1)/(*indexc));
    }
    delete base;
    delete index;
    return new Complex<T>(result);
  }
  
  }