What does [2,1] mean?

[Bernds59]

Hello,
using a function with a vector I get a result showing a column with "[2,1]", propably with the size of the vector.
I didn't find anything about that within the help or documentation.
Could anyone explain that?
Thanks
Bernds59

 

[GregLocock]

The 2 is the answer ofr the first element of your array, and the 1 is the answer for the second elemebt

eg

func(b):b+1

called using a matrix c which is a 2 by 1 matricx of 1 s

would give

func(c)=(2,2)

Cheers

Greg Locock

 

[IRstuff]

a result of [2,1] is an indication that you've managed to nest the array, which is why it's not showing you the content of the array. There should be parentheses around the brackets, which is usually also a clue.

let's say you get d=([2,1]), then "d[0=" should allow you to see the content of the nested array.

If you pick a blank spot to move the edit cursor to and select Format|Result|Display Options and check the "Expand nested arrays] checkbox, you should also see the nested array

TTFN

 

[Bernds59]

Thanks to IRstuff.
The "d[0=" and "d[1=" hint shows me the result I was looking for. The second hint didn't work.
Unfortunately I didn't understand your explanation.

I used a formula to add two vectors, so the result is a vector again - so far it's easy, but

I defined the formula as a function with an angle as a parameter.

Then I definded an index i=0...360 and passed the vector of the 360 angles (in radian) as a parameter to the function and the result was as described:
L(angle[i)=[2,1]....
I can't see anything being "nested"?!?

Bernds59

 

[IRstuff]

can you post your sheet somewhere on the Mathcad Collab website, like the Mechanical Engineering forum?

http://collab.mathsoft.com/~Mathcad2000

it'll make it much easier to see what's going on.



TTFN