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1-Visitor
November 21, 2013
Solved

Substitute all "i" and "j" with 1...4 in 4th polynomial function?

  • November 21, 2013
  • 4 replies
  • 2071 views

Hello,

I have this 4th degree polynomial function:

Image+004.png

and I want to write it this way:

Image+005.png

you know, substitute all "i" and "j" with 1...4. I dont want to do it manualy 🙂

Can MathCad help me somehow?

Thank you.

Best answer by Werner_E

Use symbolic evaluation

pol8deg.png

I would call this a polynomial of 4th degree

pol4deg.png

4 replies

Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
November 21, 2013

Use symbolic evaluation

pol8deg.png

I would call this a polynomial of 4th degree

pol4deg.png

1-Visitor
November 21, 2013

Sorr for my mistake... I am not math pro...

Your solution looks pretty obvious, but I still have only this:

Image+006.png

I just cannot write that small comma between "i" and "j"

Thank you.

Werner_E
25-Diamond I
November 22, 2013

You need to use vector/matrix indices (matrix palette or by typing [), not literal ones.