how do I evaluate the value of an expression?
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Matteo Masto
on 2 Nov 2019
Answered: Joshua Hodson
on 10 Feb 2021
x = [-2:0.01:1];
f = (x.^2) -x +1 - (exp(-x));
x1 = -1.9;
f(x1)
this gives me the error:
Array indices must be positive integers or logical values
How can I manage to extract the right value of f at x1?
thanks!
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Accepted Answer
Star Strider
on 2 Nov 2019
Try this:
f = @(x) (x.^2) -x +1 - (exp(-x));
x1 = -1.9;
fx1 = f(x1)
creating an anonymous function and producing:
fx1 =
-0.175894442279269
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