matlab code to find the second order derivative the function y=3e7x−sin3x in matlab

To find the second order derivative of a function in MATLAB, you can use the built-in diff function twice. Here's how you can calculate the second order derivative of the function y = 3e7x - sin(3x):

main.m
syms x; % define symbolic variable x

% define the function
y = 3e7*x - sin(3*x);

% calculate the first derivative
dy_dx = diff(y, x);

% calculate the second derivative
d2y_dx2 = diff(dy_dx, x);

% display the second derivative
d2y_dx2
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The output will be the second order derivative of the function y = 3e7x - sin(3x) with respect to x.

Note: In this code, we use the syms command to define x as a symbolic variable, which allows us to perform symbolic calculations.

Make sure to save the code file with a .m extension, for example, second_derivative.m, and run it in MATLAB to see the result.