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Vectors to solve individual equation - Not sure if bug or feature - Сообщения
OK, SO I have a basic question. How do I use a vector to solve an equation? See attached where I have Area defined and Diameter is 8 and 16 inches. As long as I don't square the equation, the result remains a vector
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Hello,
It seems that vectors - column matrix are multiplied getting their scalar product (sum of products of their elements). If you want the elemental product you should use for loop.
[MATH=eng]D:mat(8,16,2,1)[/MATH]
[MATH=eng]for(i,range(1,length(D)),el(A,i):π/4*el(D,i)^2)[/MATH]
[MATH=eng]A=mat(50.265,201.062,2,1)[/MATH]
Regards,
Radovan
It seems that vectors - column matrix are multiplied getting their scalar product (sum of products of their elements). If you want the elemental product you should use for loop.
[MATH=eng]D:mat(8,16,2,1)[/MATH]
[MATH=eng]for(i,range(1,length(D)),el(A,i):π/4*el(D,i)^2)[/MATH]
[MATH=eng]A=mat(50.265,201.062,2,1)[/MATH]
Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
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ElSid 25.07.2012 10:35:00
Thanks. I figured it out slightly before you posted. I see this question has been previously asked ... as the equivalent of MathCADs vectorize (e.g. element-wise matrix operation) http://en.smath.info/forum/yaf_postsm3770findlastpost_element-wise-matrix-operations.aspx#post3770. I hope Andre can get this feature implemented for the same reason on the link.
Secondary question, when defining a NEW unit, is there a way of forcing it to show in the same font and color (blue) as the built in units?
Secondary question, when defining a NEW unit, is there a way of forcing it to show in the same font and color (blue) as the built in units?
Sure, just use the apostrophe "'" when defining the unit you want. Then from there it always displays the font and colour correctly.
Steve
Steve
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