Command use to convert expression E to numeric form

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Su Hyun Kim
Su Hyun Kim 2021-6-30
回答： Star Strider 2021-6-30
Command use to convert expression E to numeric form
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Star Strider
Star Strider 2021-6-30
If ‘E’ is a symbolic expression (we have no idea exactly what it is), then matlabFunction could be appropriate to turn it into an anonymous function that could be executed numerically. If it is a symbolic scalar or vector, then vpa or double would be appropriate, depending on the desired result.
If none of these are appropriate, I will delete this Answer.
Jan
Jan 2021-6-30
Ran in:
Maybe you mean the output to the command window?
format short
pi * 1e8
ans = 3.1416e+08
format long
pi * 1e8
ans =
3.141592653589793e+08
format long g
pi * 1e8
ans =
314159265.358979
You have more control using fprintf or sprintf to create the output.

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