From 71cfc5d8615568ed2deaf92fe76fe94bbf39ebd1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Fri, 29 Sep 2017 17:26:01 +0200
Subject: [PATCH] [poincare] Add rule (-1256)^(1/3)->e^(iPI/3)2*157^(1/3)

Change-Id: I3fd692bef317af4d35b6e38551f81bc306d131c4
---
 .../transform/rational_power_transform.cpp           | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/poincare/src/simplification/transform/rational_power_transform.cpp b/poincare/src/simplification/transform/rational_power_transform.cpp
index 2d0519799..d3292fd12 100644
--- a/poincare/src/simplification/transform/rational_power_transform.cpp
+++ b/poincare/src/simplification/transform/rational_power_transform.cpp
@@ -6,6 +6,8 @@
 #include <poincare/multiplication.h>
 #include <poincare/power.h>
 #include <poincare/arithmetic.h>
+#include <poincare/symbol.h>
+#include <ion.h>
 
 bool Poincare::Simplification::RationalPowerTransform(Expression * captures[]) {
   Power * p0 = static_cast<Power *>(captures[0]);
@@ -40,7 +42,15 @@ bool Poincare::Simplification::RationalPowerTransform(Expression * captures[]) {
     return false;
   }
   if (i0->isNegative()) {
-  // TODO if i0.isNegtative?
+    const Symbol * exp = new Symbol(Ion::Charset::Exponential);
+    const Symbol * iComplex = new Symbol(Ion::Charset::IComplex);
+    const Symbol * pi = new Symbol(Ion::Charset::SmallPi);
+    const Expression * multOperands[4] = {iComplex, pi, i1->clone(), p1->clone()};
+    Multiplication * mExp = new Multiplication(multOperands, 4, false);
+    const Expression * powOperands[2] = {exp, mExp};
+    const Power * pExp = new Power(powOperands, false);
+    const Expression * operand[1] = {pExp};
+    m->addOperands(operand, 1);
   }
   m->replaceOperand(i1, new Integer(r1), true);
   const Expression * powerOperands[2] = {new Integer(r2), p1};