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March 22, 2022
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Access a element in a vector

  • March 22, 2022
  • 3 replies
  • 12198 views

Hi,

 

Assume I have a vector of 10*10. How to access one element from the vector in MATHCAD Prime.

Say I would like to know 3*4th element in the vector. How to get the same

Best answer by Werner_E

@MR_9547140 wrote:

Hi,

 

Assume I have a vector of 10*10. How to access one element from the vector in MATHCAD Prime.

Say I would like to know 3*4th element in the vector. How to get the same


You use the vector/matrix index to do so (keyboard short is "[" without the quotes), separating row and column index by a comma.

Note that by default Prime starts to number vectors and matrices starting with 0. You can change this by setting a different value for the system variable ORIGIN (either at the top of the page or via the menu).

So if you have a 10 x 10 matrix, the top left element has the indices 0,0

In Prime instead of using the matrix index you may also use the matrix like a function, providing row and column index as arguments.

Here is an example:

Werner_E_0-1647956292940.png

 

3 replies

Werner_E25-Diamond IAnswer
25-Diamond I
March 22, 2022

@MR_9547140 wrote:

Hi,

 

Assume I have a vector of 10*10. How to access one element from the vector in MATHCAD Prime.

Say I would like to know 3*4th element in the vector. How to get the same


You use the vector/matrix index to do so (keyboard short is "[" without the quotes), separating row and column index by a comma.

Note that by default Prime starts to number vectors and matrices starting with 0. You can change this by setting a different value for the system variable ORIGIN (either at the top of the page or via the menu).

So if you have a 10 x 10 matrix, the top left element has the indices 0,0

In Prime instead of using the matrix index you may also use the matrix like a function, providing row and column index as arguments.

Here is an example:

Werner_E_0-1647956292940.png

 

24-Ruby III
March 22, 2022
24-Ruby IV
March 22, 2022

We can do it so too

MMMMM.png

Who can show an even more exotic way to access one element from the matrix?

24-Ruby IV
March 22, 2022

Matrix Exercises

MMMMMM.png