Function Graphs:

• what are mathematical functions y = f (x) ?
  • given a value for x (argument) the function returns a result.
• how can we write math functions in C++?
  • just write the expression, but
  • better yet, write a function that returns a result!
• what are function graphs?
  • illustration of values for x (horizontal) and y (vertical).
• how can we draw function graphs?
  • move a point with coordinates (x, f(x));
  • from an initial Xo to a final Xn;
  • draw points as close as reasonable.

Example ball7.cpp (not in the book) , c5sin.cpp

Download ball7.cpp