Display symbolic expressions as rational.

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Agustín Rico
Agustín Rico on 2 Feb 2021
Commented: Diaa on 18 Dec 2021
How can I display symbolic expressions as rationals? Functions like sympref or vpa allows to display in decimal format, but doesn't provide a way to display symbolic expressions as rationals.
For example:
syms x
(1/2)*(3*x^2)
ans =
1.5000*x^2
Instead of that output I desire the rational expression (or similar):
(3*x^2)/2
  1 Comment
James Tursa
James Tursa on 2 Feb 2021
That's what I get:
>> syms x
(1/2)*(3*x^2)
ans =
(3*x^2)/2
Do you have something set in preferences that is forcing the decimal output?

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Accepted Answer

madhan ravi
madhan ravi on 2 Feb 2021
Edited: madhan ravi on 2 Feb 2021
syms x
sympref('FloatingPointOutput',true);
(1/2)*(3*x^2)
ans = 
sympref('FloatingPointOutput',false);
(1/2)*(3*x^2)
ans = 
  2 Comments
Diaa
Diaa on 18 Dec 2021
Thanks to you for this answer, and special thanks to google algorithm for bringing me here without wasting my whole day.

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