How to solve exponential equation in Matlab?

find x for (e^(-x))+(e^(-0.1x))=0.5

Answer 1

[Torsten]

Substitute

y = exp(-0.1*x).

Your equation now becomes

y^10 + y = 0.5

Use MATLAB's "roots" to solve for y.

Then

x = -10*log(y)

for the real-valued positive root(s) are solutions to your original equation.

Best wishes

Torsten.

Answer 2

[Star Strider]

Use an anonymous function and the fzero (link) function.

See the documentation on Anonymous Functions (link) for details.

Answer 3

[Shreyansh Shrivastava]

exp((-3020/T)+5.13)=0.8T

Solve for T?