Using solve to find intersection points

Given two functions, f(x) = exp(-x^2) and g(x) = 0.8, how do I use Matlab's solve function to find all intersection points of f(x) and g(x)?

Answer 1

[Star Strider]

It’s as simple as it looks —

syms x 
f(x) = exp(-x^2)

f(x) = 

g(x) = sym(0.8)

g(x) = 

xi = solve(f == g)

xi = 

xi_vpa = vpa(xi)

xi_vpa = 

.

[Matthew Lamanilao]

Thank you!

[Star Strider]

As always, my pleasure!

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