Graph paper,
graphing paper, or
millimeter paper is writing
paper that is printed with fine lines making up a
regular grid. The lines are often used as guides for plotting
mathematical functions or
experimental data and drawing
two-dimensional graphs. It is commonly found in mathematics and engineering education settings and in
laboratory notebooks. Graph paper is available either as
loose leaf paper or bound in
notebooks. It is becoming less common as computer software, such as
spreadsheets and
plotting software, has supplanted many of the former uses of graph paper. Some users of graph paper now print
pdf images of the grid pattern as needed rather than buying it pre-printed. There are websites that will generate pdfs of graph paper to the user's specifications.