[WP 34s] Matrix multiplication procedure

06222015, 10:32 PM
(This post was last modified: 06222015 10:36 PM by Marcio.)
Post: #1




[WP 34s] Matrix multiplication procedure
Hello all,
Would you be kind enough as to explain with an example how to do matrix multiplication in the 34s? So far I have only been able to invert them, mostly because all it takes is store the data in \(R_n\) and then call \(M^{1}\) with the descriptor in \(x\). Quite easy. As to multiply matrices, the manual says the descriptors should be in \(z\) and \(y\), the problem however is that I don't quite understand what should be in \(x\). Very much appreciated. Marcio 

06222015, 11:30 PM
(This post was last modified: 06222015 11:38 PM by Thomas Klemm.)
Post: #2




RE: [WP 34s] Matrix multiplication procedure
WP 34S pocket reference
M× z y x → r Take two matrix descriptors y and z, and the integer part of x as the base address of the re sult. Returns (Z)·(Y)=(X). All calculations are done in internal high precision (39 digits). The fractional part of x is updated to match the resulting matrix  no overlap checking is performed. (06222015 10:32 PM)Marcio Wrote: the problem however is that I don't quite understand what should be in \(x\). That is the matrixdescriptor of the result. Make sure it doesn't overlap with z and y. HTH Thomas 

06222015, 11:38 PM
(This post was last modified: 06232015 12:09 AM by Marcio.)
Post: #3




RE: [WP 34s] Matrix multiplication procedure  
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