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build3/poincare/src/naperian_logarithm.cpp 1.34 KB
6663b6c9   adorian   projet complet av...
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  #include <poincare/naperian_logarithm.h>
  #include <poincare/symbol.h>
  #include <poincare/logarithm.h>
  #include <poincare/simplification_engine.h>
  extern "C" {
  #include <assert.h>
  #include <stdlib.h>
  }
  #include <ion.h>
  #include <cmath>
  #include "layout/horizontal_layout.h"
  #include "layout/parenthesis_layout.h"
  #include "layout/string_layout.h"
  
  namespace Poincare {
  
  Expression::Type NaperianLogarithm::type() const {
    return Type::NaperianLogarithm;
  }
  
  Expression * NaperianLogarithm::clone() const {
    NaperianLogarithm * a = new NaperianLogarithm(m_operands, true);
    return a;
  }
  
  Expression * NaperianLogarithm::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) {
      return SimplificationEngine::map(this, context, angleUnit);
    }
  #endif
    const Expression * logOperands[2] = {operand(0)->clone(), new Symbol(Ion::Charset::Exponential)};
    Logarithm * l = new Logarithm(logOperands, 2, false);
    replaceWith(l, true);
    return l->shallowReduce(context, angleUnit);
  }
  
  template<typename T>
  Complex<T> NaperianLogarithm::computeOnComplex(const Complex<T> c, AngleUnit angleUnit) {
    if (c.b() != 0) {
      return Complex<T>::Float(NAN);
    }
    return Complex<T>::Float(std::log(c.a()));
  }
  
  }