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I have to generate F(x) of a function with a degree of 5 who has zeros of x=2,x=1+3i,x=2-4i

After i put it into maple i use the command expand to give me the total function but afterwards i get this 144*i^4*x-25*i^2*x^3+x^5-288*i^4+118*i^2*x^2-8*x^4-188*i^2*x+25*x^3+104*i^2-38*x^2+28*x-8

i need to know what command can i use to get it to converts i^4 to 1 and i^2 to-1 that way i can truly simplify it. 

Hi i'm new to maple.

Is there a way to remove commas from a list?

I was able to remove the list from its brackets []
but i was wondering if I'm able to remove the commas also?

hi

I want to have a fprint command which should given me the data in two columns.

I want to modifiy the following command

fprintf(fd,"%f \n",li,sigmai);

this command gives me data in horizental form, i.e.,

0.001000 0.300990 0.600980 0.900970 1.200960 1.500950 1.800940  2.100930

But i want it in the follwoing form

 li              sigma

0.001000 0.300990

 0.600980 0.900970

for the record, I just discovered that while you can save a worksheet with a name like

mywork,mapleprimes.mw

you cannot open it (with Maple 15, June 2011)

Maple will return an error message like "file mapleprimes.mw could not be found" (swallowing up the "mywork," part of the name)

but if you rename it mywork-mapleprimes.mw

it will work fine.

In other words, do not insert commas in file names.

I do not know/remember if...