# MATLAB output is a bunch of numbers with operators not the exact number

1 view (last 30 days)
Fatemeh Salar on 20 Jun 2022
Commented: Fatemeh Salar on 20 Jun 2022
Hi,
When i ask MATLAB to solve a problem using syms and det , in output section it showes as series on formulas that needed to be calulated and not the exact value. How can I ask matlab to show the exavt number and not numers with operators ? for example instead of (25/6 - (5*13^(1/2))/6)^(1/2) shows 1.078 in commant window
A =
(25/6 - (5*13^(1/2))/6)^(1/2)
((5*13^(1/2))/6 + 25/6)^(1/2)
-(25/6 - (5*13^(1/2))/6)^(1/2)
-((5*13^(1/2))/6 + 25/6)^(1/2)
while it should be :
1.0780
2.6779
-1.0780
-2.6779

Stephen23 on 20 Jun 2022
double(A)
Fatemeh Salar on 20 Jun 2022
Thanks ... It worked

DGM on 20 Jun 2022
To be pedantic, those expressions are the exact result. The decimal values are an approximation.
That said, you should be able to use double() to convert the symbolic expressions to numeric.
Fatemeh Salar on 20 Jun 2022
Yes you're right, it just worked when I used double().. Thanks.