%% Homework ch8 (Mathematical Engineering)
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% Section 8.1
% 5.*  a. Use MATLAB to solve the following equations for x, y, and z as functions of the parameter c.
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% b. Plot the solutions for x, y, and z versus c on the same plot, for −10 ≤ c ≤ 10.
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% Section 8.3
% 13.* Solve the following equations:
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% Section 8.4
% 22. a. Use MATLAB to find the coefficients of the quadratic polynomial y = ax 2 + bx + c that passes through the three points (x, y) = (1, 4), (4, 73), (5, 120).
% b. Use MATLAB to find the coefficients of the cubic polynomial y = ax 3 + bx 2 + cx + d that passes through the three points given in part a.
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