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====== Matlab ======

These lines of code help make a better looking plot that can be exported for a notebook or a publication.

  x=[400:1:450];
  y=2*sin(x/5);
  figure('units','centimeters','Position', [10 10 8.5 8.5])
  p=plot(x,y,'LineWidth',1.1); %make curve slightly thicker than default
  set(gca,'linewidth',1.1)  %make axis slightly lines thicker than default
  axis([400 450 0 3])
  xlabel('wavelength, \lambda (nm)') %LaTeX notation for math symbols
  ylabel('intensity (W/cm^2)') %LaTeX notation for superscript
  set(gca,'FontSize',10) %10 point font when used as 8.5 cm figure.
  
Additional pointers about graphs on Matlab.
  *If your data is very big or very small, multiply the data by a scaling factor and note this scaling factor in the units. For example, rather than plot 1e-8 amperes, multiply by 1 billion and plot as 10 nA.  
  *From the menus associated with the figure, go to "file > export setup > rendering", and set the resolution to 300 dpi or 600 dpi ("apply to figure").
  *From the menus associated with the figure, go to "file > save as", and save as a png file. Choose png because it is much better than jpg for line graphics.