# How to enter the following functions

3 views (last 30 days)
Santiago Rodrigues on 6 Oct 2019
Commented: Stephan on 6 Oct 2019
Hello,
So I need to enter the functions
6cos(theta)=theta/5 in the interval [pi,2pi] and
e^(-0.01x)=7x-2 in the interval [0,3]
The objective is to use the fzero opperator and stuff.
How can I do this?

Stephan on 6 Oct 2019
Edited: Stephan on 6 Oct 2019
you need to rewrite so that the given equations are equal to zero. Then fzero finds x.
fun = @(x) something with x equal to zero
x0 = some starting point
res = fzero(fun,x0)

Walter Roberson on 6 Oct 2019
In particular, the form
first_expression_in_variable = second_expression_in_variable
can be rewritten as
@(variable) first_expression_in_variable - second_expression_in_variable
Santiago Rodrigues on 6 Oct 2019
Yeah, thanks. I realize I am very dumb. Thank you foe your help
Stephan on 6 Oct 2019
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