matrix and summation

matrix and summation - arts1983@gmail.com - Messages

#1 Posted: 2012/5/17 06:19:55
arts1983

arts1983

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There's a simplest way to do this, without write [MATH]sum(el(q;k);k;1;1)*Q^{-1}[/MATH], ecc. in T matrix?

[MATH]q:mat(23;10;22;3;1)[/MATH]
[MATH]n:3[/MATH]
[MATH]Q:sum(el(q;k);k;1;n)[/MATH]
[MATH]T:mat(sum(el(q;k);k;1;1)*Q^{-1};sum(el(q;k);k;1;2)*Q^{-1};sum(el(q;k);k;1;3)*Q^{-1};3;1)[/MATH]
[MATH]T=mat(0.4182;0.6;1;3;1)[/MATH]
#2 Posted: 2012/5/17 06:56:30
Davide Carpi

Davide Carpi

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hi,

something like this?



here is the file in the image: m&s.zip


regards,

w3b5urf3r
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1 users liked this post
Andrey Ivashov 2012/5/17 13:19:00
#3 Posted: 2012/5/18 02:47:44
arts1983

arts1983

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I tried just to add another variable, but program give me error.
I'm still not able. Thank you very much!
#4 Posted: 2012/6/18 01:18:17
Stuart Bruff

Stuart Bruff

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Wrote

There's a simplest way to do this, without write [MATH]sum(el(q;k);k;1;1)*Q^{-1}[/MATH], ecc. in T matrix?

[MATH]q:mat(23;10;22;3;1)[/MATH]
[MATH]n:3[/MATH]
[MATH]Q:sum(el(q;k);k;1;n)[/MATH]
[MATH]T:mat(sum(el(q;k);k;1;1)*Q^{-1};sum(el(q;k);k;1;2)*Q^{-1};sum(el(q;k);k;1;3)*Q^{-1};3;1)[/MATH]
[MATH]T=mat(0.4182;0.6;1;3;1)[/MATH]



Here's a possible alternative method ...

smath - 12 06 17 cumsum 01.jpg

Stuart

(Unfortunately, I don't seem to be able to attach files ... I can't see an icon or text in either Firefox or Safari)
#5 Posted: 2012/6/18 14:24:11
kilele

kilele

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Wrote


(Unfortunately, I don't seem to be able to attach files ... I can't see an icon or text in either Firefox or Safari)



this is a way of posting files in the forum:
http://en.smath.info/forum/yaf_postsm5730_creating-new-operators.aspx#post5730

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