mathematical instrument
tool used in the study or practice of mathematics
straightedge
any of various tools, usually long bars or strips of wood or metal, having straight and true edges and used for drawing or cutting accurate straight lines
Napier's bones
mathematical instrument invented by John Napier
calculus
pre-writing token system
compass
drafting instrument for drawing arcs
Integraph
mechanical analog computing device for plotting the integral of a graphically defined function
mechanical calculator
mechanical machine for arithmetic operations for absolute calculators
divider caliper
mathematical instrument
Location arithmetic
One of three devices to aid arithmetic calculation described by John Napier in a treatise
protractor
angle measuring instrument
calculating tool
type of tool