Command use to convert expression E to numeric form

Command use to convert expression E to numeric form

[Walter Roberson]

Could you give an example?

[Su Hyun Kim]

I do know either.. it just stated like that :/

[Su Hyun Kim]

i think it's referring to E for the e^

[Walter Roberson]

exp(1)

for the constant e

exp(x)

for

Answer 1

[Star Strider]

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.

Answer 2

[Jan]

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.