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

[ptc-5390394]

Hello,

I have this 4th degree polynomial function:

and I want to write it this way:

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

Can MathCad help me somehow?

Thank you.

[Werner_E · Accepted solution]

Use symbolic evaluation

I would call this a polynomial of 4th degree

[ptc-5390394]

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

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

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

Thank you.

[Werner_E]

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

[ptc-5390394]

Done!

Thank you very much!