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[poincare] Function expression

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This commit is contained in:
Léa Saviot
2018-09-25 11:45:05 +02:00
committed by Émilie Feral
parent 3bbb8b39d1
commit 522f5e781e
9 changed files with 123 additions and 9 deletions
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60
poincare/src/function.cpp Normal file
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#include <poincare/function.h>
#include <poincare/layout_helper.h>
#include <poincare/serialization_helper.h>
#include <poincare/simplification_helper.h>
#include <poincare/rational.h>
#include <cmath>
namespace Poincare {
int FunctionNode::polynomialDegree(Context & context, char symbolName) const {
Expression e = context.expressionForSymbol(Function(this));
return e.polynomialDegree(context, symbolName);
}
int FunctionNode::getPolynomialCoefficients(Context & context, char symbolName, Expression coefficients[]) const {
Expression e = context.expressionForSymbol(Function(this));
return e.getPolynomialCoefficients(context, symbolName, coefficients);
}
int FunctionNode::getVariables(Context & context, isVariableTest isVariable, char * variables) const {
Expression e = context.expressionForSymbol(Function(this));
return e.getVariables(context, isVariable, variables);
}
float FunctionNode::characteristicXRange(Context & context, Preferences::AngleUnit angleUnit) const {
Expression e = context.expressionForSymbol(Function(this));
return e.characteristicXRange(context, angleUnit);
}
Layout FunctionNode::createLayout(Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
char nameString[2] = {name(), 0}; //TODO Fix this when longer name
return LayoutHelper::Prefix(Function(this), floatDisplayMode, numberOfSignificantDigits, nameString);
}
int FunctionNode::serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
char nameString[2] = {name(), 0}; //TODO Fix this when longer name
return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, nameString);
}
Expression FunctionNode::shallowReduce(Context & context, Preferences::AngleUnit angleUnit) {
return Function(this).shallowReduce(context, angleUnit);
}
Evaluation<float> FunctionNode::approximate(SinglePrecision p, Context& context, Preferences::AngleUnit angleUnit) const {
Expression e = context.expressionForSymbol(Function(this));
return e.approximateToEvaluation<float>(context, angleUnit);
}
Evaluation<double> FunctionNode::approximate(DoublePrecision p, Context& context, Preferences::AngleUnit angleUnit) const {
Expression e = context.expressionForSymbol(Function(this));
return e.approximateToEvaluation<double>(context, angleUnit);
}
Function::Function() : Function(TreePool::sharedPool()->createTreeNode<FunctionNode>()) {}
Expression Function::shallowReduce(Context & context, Preferences::AngleUnit angleUnit) {
return Expression::defaultShallowReduce(context, angleUnit);
}
}