How to combine numerator and denominator in original form

Hello Everyone,

suppose I have one vector say v =[ 2021429518004981288989071978287/3538031894290286283107218751488, 16596427267731862375274731305887/28304255154322290264857750011904]. Its numerator is Nv = [2021429518004981288989071978287, 16596427267731862375274731305887] and denominator is Dv= [3538031894290286283107218751488, 28304255154322290264857750011904]. I have done it by using [Nv, Dv] = numden(sym(v)) and 'sym' because my v is in symbolic form. Now suppose I have only Nv and Dv and I want to find exactly v (in same form) then how can I get it. Please help me.

Thanks!

:MSA

Answer 1

[Karan Gill]

The answer is in this example on the sym doc page: https://www.mathworks.com/help/symbolic/sym.html#bu7u7ur-6

>> Nv = sym(["2021429518004981288989071978287", "16596427267731862375274731305887"])
Nv =
[ 2021429518004981288989071978287, 16596427267731862375274731305887]

>> Dv = sym(["3538031894290286283107218751488", "28304255154322290264857750011904"])
Dv =
[ 3538031894290286283107218751488, 28304255154322290264857750011904]

>> Nv./Dv
ans =
[ 2021429518004981288989071978287/3538031894290286283107218751488, 16596427267731862375274731305887/28304255154322290264857750011904]

[Sultan]

Thanks dear Karan Gill. But when I run Nv = sym(["2021429518004981288989071978287", "16596427267731862375274731305887"]), then it shows an error: Error: The input character is not valid in MATLAB statements or expressions.

Answer 2

[KSSV]

v = Nv./Dv ;

[Sultan]

 Thanks KSSV!
It is not returning exact form.