Question

Write a user-defined MATLAB function for the following math function y(x). The input to the function is x and the output is y. y(x)=-(0.2*x^4)+((e^-0.5*x)*x^3)+7*x^2 Call the function to calculate y(x) over the interval -3 ≤ x ≤ 4 for each increment of 1. Display x and corresponding y(x) in a text file with labeled column headings. Use the type command to display the contents in the text file.

Answer 1

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

clear all
close all
clc
x=-3:1:4;
y=calculate(x);
fileID = fopen('out.txt','w');
fprintf(fileID,'x\t\ty(x)\n');
for i=1:length(x)
fprintf(fileID,'%d\t%f\n',x(i),y(i));
end
fclose(fileID);
type('out.txt');
function y=calculate(x)
y=-(0.2*x.^4)+((exp(-0.5*x)).*x.^3)+7*x.^2;
end

Kindly revert for any queries

Thanks.

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

clear all
close all
clc
x=-3:1:4;
y=calculate(x);
fileID = fopen('out.txt','w');
fprintf(fileID,'x\t\ty(x)\n');
for i=1:length(x)
fprintf(fileID,'%d\t%f\n',x(i),y(i));
end
fclose(fileID);
type('out.txt');
function y=calculate(x)
y=-(0.2*x.^4)+((exp(-0.5*x)).*x.^3)+7*x.^2;
end

Kindly revert for any queries

Thanks.