graphing drill 1/3 [fltk]

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 15 Function Graphing Drill 1
Using GUI library called FLTK (Fast Light Tool Kit, “full tick”).

Output:

[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 15 Function Graphing Drill 1

#define _USE_MATH_DEFINES
#include "Simple_window.h"
#include "Graph.h"
#include <cmath>

using namespace Graph_lib;

int main()
try
{
Point tl(100, 100);
Simple_window win(tl, 600, 600, "Function graphs.");

win.wait_for_button();
}
catch (exception& e) {
cout << e.what() << endl;
return 1;
}
catch (…) {
cout << "Exiting" << endl;
return 2;
}
[/code]

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