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[linpy.git] / examples / bac2014.py

diff --git a/examples/bac2014.py b/examples/bac2014.py
index 866ed82..cc02126 100755 (executable)
--- a/examples/bac2014.py
+++ b/examples/bac2014.py
@@ -1,28 +1,15 @@
 #!/usr/bin/env python3
 
 #!/usr/bin/env python3
 

-"""
-    This file is part of Linpy.
+# This example is inspired from a math question in the French baccalauréat 2014,
+# consisting in computing the intersection of a plane with a line.

 
 

-    Linpy is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    Linpy is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with Linpy.  If not, see <http://www.gnu.org/licenses/>.
-"""
-
-from pypol import *
+from linpy import *

 
 x, y, z = symbols('x y z')
 
 x, y, z = symbols('x y z')

-DF = Eq(x, y) & Eq(z, 6 - 2*x)
-P = Eq(x + y - 2*z, 0)
-
-print('DF ∩ P =', DF & P)
+plane = Eq(x, y) & Eq(z, 6 - 2*x)
+line = Eq(x + y - 2*z, 0)

 
 

-# Copyright 2014 MINES ParisTech  
+if __name__ == '__main__':
+    print('plane:       ', plane)
+    print('line:        ', line)
+    print('intersection:', plane & line)