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revision 2115, Sat Feb 23 09:23:17 2008 UTC  revision 2120, Tue Mar 4 21:44:41 2008 UTC  

#  Line 23  Line 23 
23  keep triangular and symmetric Matrices when appropriate:  keep triangular and symmetric Matrices when appropriate: 
24  particularly desirable for "Math2": round(), signif()  particularly desirable for "Math2": round(), signif() 
25  
26  For triangular matrices, more specifically make sure the four rules of  
27  "triangular matrix algebra" (Golub+Van Loan 1996, 3.1.8, p.93) are  
28  fulfilled; currently <dtC> %*% <dtC> > <dgC>  
29  
30   "d" <> "l" coercion for all "[TCR]" sparse matrices is really trivial:   "d" <> "l" coercion for all "[TCR]" sparse matrices is really trivial: 
31  "d" > "l" : drops the 'x' slot  "d" > "l" : drops the 'x' slot 
32  "l" > "d" : construct an 'x' slot of all '1'  "l" > "d" : construct an 'x' slot of all '1' 

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