How can i divide symbolic polinoms?

Hi! I have two symbolic polinoms as vector expression: n=[num1 num2] d=[den1 den2 den3]

I want to opperate d/n. As they are simbolic expression, i cannot use typical pdivide function. Checking around in internet I found:

[c,r]=quorem(d,n)

I get an answer like this:

c=[ A div B, C div D] r=[ E mod F, G mod H]

I dont know what do mod and div mean!

On the other side, I also found another option in this chat for the same porpuse:

feval(symengine,'pdivide',d,n)

and the answer that i get is something like:

[a,b,polinom]

It looks good but i dont know what do those a and b represent

I am just trying to find as easiest exppression as possible... I hope you can help me! thanks to everyone in advance!!

Answer 1

[Walter Roberson]

"div" is division with remainder discarded. "mod" is remainder only.

http://www.mathworks.com/help/symbolic/mupad_ref/pdivide.html

For feval(symengine,'pdivide',d,n) if your result is [a,b,polinom] then

a * d = b * n + polinom

"By default, pdivide determines the factor b as b = lcoeff (q)^( degree (p) - degree(q) + 1)."

lcoeff() here is "leading coefficient", and so is what the highest-order term of the variable in q is multiplied by

Answer 2

[Maria Maximina]

ok i have one more question then... i do not understand really good how does it work with that mod and div at the [c,q]=quorem([d],[n])

What I get is

c=[ A div B, C div D] r=[ E mod F, G mod H]

What does it really mean, if i want to get a d/n ???

Thanks again!

[Walter Roberson]

Could you give an actual example showing d and n and the outputs you get?