This project was made for a C++ class between January and June of 2019. The program is able to plot every polynomial or trigonometric function on a specified interval. The function should have one of the following format :

• a
• ax
• xⁿ
• axⁿ
• P
• cos(P)
• sin(P)
• a ∗ cos(P)
• ax ∗ cos(P)
• xⁿ ∗ cos(P)
• axⁿ ∗ cos(P)

Where a is a real number, n is a positive integer and P is a polynomial.

It will also print approximation of roots on the interval.

This one is the plot of the function f(x) = x² - 2 between -3 and 3. You can also see the approximation of the roots √2 and -√2.

This one is the plot of the function f(x) = cos(x) between -2π and 2π. You can also see the approximation of the roots -3π/2, -π/2, π/2 and 3π/2.

This one is the plot of the function f(x) = x³ - 4x² between -1 and 5.