topic Re: Convert Nested Array to Matrix in Mathcad

Convert Nested Array to Matrix

Bartz87 — Thu, 03 May 2018 18:06:43 GMT

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Re: Convert Nested Array to Matrix

ValeryOchkov — Thu, 03 May 2012 04:41:33 GMT

Re: Convert Nested Array to Matrix

StuartBruff — Sat, 26 May 2012 19:12:40 GMT

Here's another approach ...

Even works in Prime 1.0

Stuart

Re: Convert Nested Array to Matrix

ValeryOchkov — Sun, 27 May 2012 14:29:44 GMT

Yes, we can have here only one loop for!

We have in Mathcad Prime a new operator returns a matrix row:

One additional quastion.

Can you convert a matrix into a vector (create a matrix2vector function) with one loop for?

I can do it in Mathcad 15 but not in Mathcad Prime.

Re: Convert Nested Array to Matrix

StuartBruff — Sun, 27 May 2012 15:16:21 GMT

Valery Ochkov wrote:
One additional quastion.
Can you convert a matrix into a vector (create a matrix2vector function) with one loop for?
I can do it in Mathcad 15 but not in Mathcad Prime.

Yes. My standard vec function does it with only loop (and uses recursion to flatten any nested elements), but I imagine this isn't the один дополнительный) вопрос that you really had in mind?

Stuart

Re: Convert Nested Array to Matrix

ValeryOchkov — Sun, 27 May 2012 19:12:48 GMT

One loop for without recursion:

Re: Convert Nested Array to Matrix

StuartBruff — Sun, 27 May 2012 19:38:05 GMT

Valery Ochkov wrote:
One loop for without recursion:

Ah, OK, so you wanted to turn a matrix into a nested vector where each nested array is one element of the original matrix?

It should work in Prime, but not as a pure evaluation. If you assign it to a variable, it should be fine.

Stuart

Re: Convert Nested Array to Matrix

ValeryOchkov — Mon, 28 May 2012 04:53:50 GMT

I see first time in Mathcad 15/Prime that var:=... var= and var:=...= is not equal:

Re: Convert Nested Array to Matrix

StuartBruff — Mon, 28 May 2012 06:09:40 GMT

Valery Ochkov wrote:
I see first time in Mathcad 15/Prime that var:=... var= and var:=...= is not equal:

An even bigger problem, and a far more frustrating one, is that whereas I can evaluate

vec(0,0,1..1) in Mathcad 11..15, I can't even enter a range definition (x,y..z) as an argument in Prime 1.0.

Stuart