Graph paper

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Graph paper is paper that is printed with fine lines making up a grid. The lines are used as guides for plotting mathematical functions and drawing diagrams. It is commonly found in math classrooms and in engineering settings for quick drawings and sketches.

Some specialized forms of graph paper have logarithmic scales or allow plotting in polar coordinates. Quad paper is a common form of graph paper with a sparse grid printed in light blue or gray and right to the edge of the paper.

3D graph paper or isometric graph paper is also available, but fairly rare. It uses a series of three guidelines forming a 60-degree grid of small triangles to draw isometric views.

Graph paper is typically sold as filler paper or in bound in notebooks.

Computer plotting programs have supplanted many of the former uses of graph paper, much as calculators have supplanted slide rules.

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