Blame view

build3/poincare/src/square_root.cpp 1.75 KB
6663b6c9   adorian   projet complet av...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
  #include <poincare/square_root.h>
  #include <poincare/complex.h>
  #include <poincare/power.h>
  #include <poincare/simplification_engine.h>
  #include "layout/nth_root_layout.h"
  extern "C" {
  #include <assert.h>
  }
  #include <cmath>
  #include <ion.h>
  
  namespace Poincare {
  
  Expression::Type SquareRoot::type() const {
    return Type::SquareRoot;
  }
  
  Expression * SquareRoot::clone() const {
    SquareRoot * a = new SquareRoot(m_operands, true);
    return a;
  }
  
  static_assert('\x90' == Ion::Charset::Root, "Unicode error");
  int SquareRoot::writeTextInBuffer(char * buffer, int bufferSize, int numberOfSignificantDigits) const {
    return LayoutEngine::writePrefixExpressionTextInBuffer(this, buffer, bufferSize, numberOfSignificantDigits, "\x90");
  }
  
  template<typename T>
  Complex<T> SquareRoot::computeOnComplex(const Complex<T> c, AngleUnit angleUnit) {
    if (c.b() == 0 && c.a() >= 0) {
      return Complex<T>::Float(std::sqrt(c.a()));
    }
    return Power::compute(c, Complex<T>::Float(0.5));
  }
  
  Expression * SquareRoot::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
    Power * p = new Power(operand(0), new Rational(1, 2), false);
    detachOperands();
    replaceWith(p, true);
    return p->shallowReduce(context, angleUnit);
  }
  
  ExpressionLayout * SquareRoot::privateCreateLayout(FloatDisplayMode floatDisplayMode, ComplexFormat complexFormat) const {
    assert(floatDisplayMode != FloatDisplayMode::Default);
    assert(complexFormat != ComplexFormat::Default);
    return new NthRootLayout(operand(0)->createLayout(floatDisplayMode, complexFormat),nullptr);
  }
  
  }