determinant.cpp
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#include <poincare/determinant.h>
#include <poincare/matrix.h>
extern "C" {
#include <assert.h>
}
#include <cmath>
namespace Poincare {
Expression::Type Determinant::type() const {
return Type::Determinant;
}
Expression * Determinant::clone() const {
Determinant * a = new Determinant(m_operands, true);
return a;
}
Expression * Determinant::shallowReduce(Context& context, AngleUnit angleUnit) {
Expression * e = Expression::shallowReduce(context, angleUnit);
if (e != this) {
return e;
}
Expression * op = editableOperand(0);
#if MATRIX_EXACT_REDUCING
if (!op->recursivelyMatches(Expression::IsMatrix)) {
return replaceWith(op, true);
}
return this;
#else
return replaceWith(op, true);
#endif
}
// TODO: handle this exactly in shallowReduce for small dimensions.
template<typename T>
Expression * Determinant::templatedApproximate(Context& context, AngleUnit angleUnit) const {
Expression * input = operand(0)->approximate<T>(context, angleUnit);
Expression * result = nullptr;
if (input->type() == Type::Complex) {
result = input->clone();
} else {
assert(input->type() == Type::Matrix);
result = static_cast<Matrix *>(input)->createDeterminant<T>();
}
delete input;
return result;
}
}