From 316b8bf52bcafeda47c1edd6f9a6dcf3b551ddc0 Mon Sep 17 00:00:00 2001
From: Lafrite <lafrite@poneyworld.net>
Date: Sat, 28 Feb 2015 23:11:04 +0100
Subject: [PATCH] mod all ini_step in Polynom. It solve bug with eval poly

---
 pymath/polynom.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pymath/polynom.py b/pymath/polynom.py
index 1a79843..1355e0d 100644
--- a/pymath/polynom.py
+++ b/pymath/polynom.py
@@ -434,7 +434,7 @@ class Polynom(Explicable):
         n_coef = spe_zip(self._coef, o_poly._coef)
         p = Polynom(n_coef, letter = self._letter)
 
-        ini_step = [Expression(self.postfix_tokens) + Expression(o_poly.postfix_tokens)]
+        ini_step = [Expression(self.postfix_tokens + o_poly.postfix_tokens + [op.add])]
         ans = p.simplify()
         ans.steps = ini_step + ans.steps
         return ans
@@ -453,7 +453,7 @@ class Polynom(Explicable):
         >>> Q.steps
         [< <class 'pymath.expression.Expression'> [3, 'x', 2, '^', '*', 2, 'x', '*', '+', 1, '+', '-'] >]
         """
-        ini_step = [- Expression(self.postfix_tokens)]
+        ini_step = [Expression(self.postfix_tokens + [op.sub1])]
         ans = Polynom([-i for i in self._coef], letter = self._letter).simplify()
         ans.steps = ini_step + ans.steps
         return ans
@@ -470,7 +470,7 @@ class Polynom(Explicable):
         [< <class 'pymath.expression.Expression'> [3, 'x', 2, '^', '*', 2, 'x', '*', '+', 1, '+', 6, 'x', 2, '^', '*', 5, 'x', '*', '+', 4, '+', '-'] >, < <class 'pymath.expression.Expression'> [3, 'x', 2, '^', '*', 2, 'x', '*', '+', 1, '+', 6, 'x', 2, '^', '*', '-', 5, 'x', '*', '-', 4, '-', '+'] >, < Polynom [< <class 'pymath.expression.Expression'> [1, -4, '+'] >, < <class 'pymath.expression.Expression'> [2, -5, '+'] >, < <class 'pymath.expression.Expression'> [3, -6, '+'] >]>, < Polynom [< <class 'pymath.expression.Expression'> [1, -4, '+'] >, < <class 'pymath.expression.Expression'> [2, -5, '+'] >, < <class 'pymath.expression.Expression'> [3, -6, '+'] >]>]
         """
         o_poly = self.conv2poly(other)
-        ini_step = [Expression(self.postfix_tokens) - Expression(o_poly.postfix_tokens)]
+        ini_step = [Expression(self.postfix_tokens + o_poly.postfix_tokens + [op.sub])]
         o_poly = -o_poly
         #ini_step += o_poly.steps
 
@@ -566,7 +566,7 @@ class Polynom(Explicable):
         if not type(power):
             raise ValueError("Can't raise Polynom to {} power".format(str(power)))
 
-        ini_step = [Expression(self.postfix_tokens) ^ power]
+        ini_step = [Expression(self.postfix_tokens + [power, op.pw])]
 
         if self.is_monom():
             if self._coef[self.degree] == 1: