strange format of result(division operation)

Hi everyone

I've written this code:

syms x
>> f=-5e-6*((x).^2)+3.21e2*(x);
>> eq=diff(f)==0;
>> allocate=solve(eq)

and the answer should be a number. but what I get after running the code is :

allocate =
 
189484955125144514199552/5902958103587057

that is not what I expect!

Matlab doesn't do the division operation and I wnat have the final result that is a number. what should i do?

I really appreciate your help.

Answer 1

[Chunru]

Symbolic computation tries its best not to loose accuracy. You can convert it to a number at the end

syms x
f=-5e-6*((x).^2)+3.21e2*(x);
eq=diff(f)==0;
allocate=solve(eq)

allocate = 

final_sol = double(allocate)

final_sol = 3.2100e+07

[shirin mhd]

Thank you so much Chunru.