Oliver K

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17 years, 89 days

MaplePrimes Activity

These are questions asked by Oliver K

Hi,  Maple seems to be unable to solve this kind of differential equation.





Error, (in ODEtools/info) found the indeterminate function f with different arguments {f(x), f(x-1)}

Hi, i want to find the roots of a polynomial and replace pepetitive (long) expressions in it by using alias.


-1/6*(108+12*177^(1/2))^(1/3)+4/(108+12*177^(1/2))^(1/3), 1/12*(108+12*177^(1/2))^(1/3)-2/(108+12*177^(1/2))^(1/3)+1/2*I*3^(1/2)*(-1/6*(108+12*177^(1/2))^(1/3)-4/(108+12*177^(1/2))^(1/3)), 1/12*(108+12*177^(1/2))^(1/3)-2/(108+12*177^(1/2))^(1/3)-1/2*I*3^(1/2)*(-1/6*(108+12*177^(1/2))^(1/3)-4/(108+12*177^(1/2))^(1/3))

This looks nasty, so i want to replace (108+12*177^(1/2))^(1/3)


Hi, i just want to write this equation im Maple,  how do i do it ?





Hi, people say that for-next loops are the worst way to apply repeated operations (why?). Assume i have the list


and the command line that does some stuff in it :

for i from 1 to nops(L)-1 do
 end do;

Whats a better way to do this? I guess map is useful here, but i cant get it to work.











Hi,  assume i have a list


My (to the core reduced) problem is:
I want to write a procedure that generates  the sequence containing the listname  together with its elements:


my try:

 end proc;

This doesn't work (illegal use of a formal parameter).

What to do ?




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