Just a doc update to start :-)
diff -r 2c92cefdd78e sympy/matrices/matrices.py
--- a/sympy/matrices/matrices.py Sun Jun 15 19:36:32 2008 +0200
+++ b/sympy/matrices/matrices.py Tue Jun 17 13:46:51 2008 +0200
@@ -436,7 +436,17 @@
self.cols -= 1
def row_join(self, rhs):
- # concatenates two matrices along self's last and rhs's first
col
+ """
+ Concatenates two matrices along self's last and rhs's first
column
+
+ >>> from sympy import *
+ >>> M = Matrix(3,3,lambda i,j: i+j)
+ >>> V = Matrix(3,1,lambda i,j: 3+i+j)
+ >>> M.row_join(V)
+ [0,1,2,3]
+ [1,2,3,4]
+ [2,3,4,5]
+ """
assert self.lines == rhs.lines
newmat = self.zeronm(self.lines, self.cols + rhs.cols)
newmat[:,:self.cols] = self[:,:]
@@ -444,6 +454,18 @@
return newmat
def col_join(self, bott):
+ """
+ Concatenates two matrices along self's last and bott's first
row
+
+ >>> from sympy import *
+ >>> M = Matrix(3,3,lambda i,j: i+j)
+ >>> V = Matrix(1,3,lambda i,j: 3+i+j)
+ >>> M.col_join(V)
+ [0,1,2]
+ [1,2,3]
+ [2,3,4]
+ [3,4,5]
+ """
assert self.cols == bott.cols
newmat = self.zeronm(self.lines+bott.lines, self.cols)
newmat[:self.lines,:] = self[:,:]
Riccardo Gori
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