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[poincare] Fix derivative missing argument

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This commit is contained in:
Léa Saviot
2018-10-01 10:46:35 +02:00
committed by Émilie Feral
parent e619ee0f2c
commit 01929635e8
1 changed files with 2 additions and 1 deletions
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3
apps/graph/cartesian_function.cpp
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@@ -26,7 +26,8 @@ void CartesianFunction::setDisplayDerivative(bool display) {
}
double CartesianFunction::approximateDerivative(double x, Poincare::Context * context) const {
Poincare::Derivative derivative(expression(context).clone(), Poincare::Float<double>(x)); // derivative takes ownership of Poincare::Float<double>(x) and the clone of expression
const char xUnknown[] = {Symbol::SpecialSymbols::UnknownX, 0};
Poincare::Derivative derivative(expression(context).clone(), Symbol(xUnknown, 1), Poincare::Float<double>(x)); // derivative takes ownership of Poincare::Float<double>(x) and the clone of expression
/* TODO: when we will approximate derivative, we might want to simplify the
* derivative here. However, we might want to do it once for all x (to avoid
* lagging in the derivative table. */