square_root.cpp
1.75 KB
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);
}
}