I am trying to imput tanh^4(0.5x) e^−sin2(x) into matlab but I am not sure how.

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LILIA VERGARA
LILIA VERGARA 2022-4-21
编辑： Voss 2022-4-21
I need to use difference formula to estimate the derivative of the function f(x) = tanh^4(0.5x) e^−sin2(x).
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回答（2 个）

Torsten
Torsten 2022-4-21
编辑：Torsten 2022-4-21
syms x
f = (tanh(0.5*x))^4*exp(−sin(2*x));
df = diff(f,x)
What is the difference formula ?
Voss
Voss 2022-4-21
编辑：Voss 2022-4-21
Ran in:
Here's how to make a function handle out of f(x), assuming sin2(x) is (sin(x))^2, which you could use for whatever:
f = @(x)tanh(0.5*x).^4.*exp(-sin(x).^2)
f = function_handle with value:
@(x)tanh(0.5*x).^4.*exp(-sin(x).^2)

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