GraphingCalculator 4;
Window 55 30 607 1198;
PaneDivider 469;
SignificantDigits 14;
FontSizes 18;
BackgroundType 0;
BackgroundColor 255 255 255;
StackPanes 1;
2D.Scale 0.1 0.1 5 5;
2D.BottomLeft -1.4625 -2.1375;
2D.Axes 0;
2D.GraphPaper 0;
Text "Louis de Broglie's explanation of Bohr's quantization condition rp=n\hbar: matter has an associated wavelength p=h/\lambda, and to ""fit"" around an atom that wave must close on itself – an integral number of whole wavelengths [s] must ""fit"" around the atom.   The allowed wavelengths, and hence the allowed momenta, are thus quantized.";
Color 3;
MathPaneSlider 154;
Expr a=slider([0,0.2]);
Color 17;
Expr r=1+a*cos([S*theta]),in(S,set(1*ldots*10));
Expr s=slider([0,10,40]);
Color 2;
Expr r=1+a*cos([s*theta]);
Color 7;
Expr r=1;
Text "

<size=15>Author: David A. Craig <<http://web.lemoyne.edu/~craigda/>";