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

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Fatemeh Salar
Fatemeh Salar 2022-6-20
评论： Fatemeh Salar 2022-6-20
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

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采纳的回答

Stephen23
Stephen23 2022-6-20
double(A)

更多回答（1 个）

DGM
DGM 2022-6-20
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.

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