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[poincare] Fix Multiplication::factorizeExponent

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Émilie Feral
2018-08-21 15:27:59 +02:00
parent 5ad42a19e5
commit 3e4b655cf9
1 changed files with 2 additions and 2 deletions
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4
poincare/src/multiplication.cpp
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@@ -503,9 +503,9 @@ void Multiplication::factorizeExponent(int i, int j, Context & context, Preferen
* example, it turns Multiplication(2^x,3^x) into Multiplication(6^x). */
// Step 1: find the new base
Expression s = Multiplication(childAtIndex(i), childAtIndex(j)).shallowReduce(context, angleUnit); // 2^x*3^x -> (2*3)^x -> 6^x
Expression m = Multiplication(Base(childAtIndex(i)), Base(childAtIndex(j))).shallowReduce(context, angleUnit); // 2^x*3^x -> (2*3)^x -> 6^x
// Step 2: create the new power
Expression p = Power(childAtIndex(i).childAtIndex(0), s).shallowReduce(context, angleUnit); // 2^x*(1/2)^x -> (2*1/2)^x -> 1
Expression p = Power(m, childAtIndex(i).childAtIndex(1)).shallowReduce(context, angleUnit); // 2^x*(1/2)^x -> (2*1/2)^x -> 1
// Step 3: Replace one of the child
replaceChildAtIndexInPlace(i, p);
// Step 4: Get rid of the other child