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Homemock-up of a basic calculator

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# mock-up of a basic calculator

This mock-up of a basic calculator is realistic in that it has almost every function one can expect on a typical basic calculator. The layout will of course be different on an actual calculator. A calculator shaped like, say, a credit card will have more columns of buttons than rows.

MC | OFF | C | ON | |

MR | $\div$ | |||

M+ | 7 | 8 | 9 | $\times$ |

STO | 4 | 5 | 6 | $-$ |

$\sqrt{x}$ | 1 | 2 | 3 | + |

% | 0 | . | $\pm$ | = |

A basic calculator can be counted on to have buttons for the basic arithmetic operations (addition, subtraction, multiplication and division). A button for square root is sometimes provided, its operation usually being “postfix”. The percentage key, when provided, does not always behave in a standard way. For example, on some calculators, a 15% tip on a meal costing $\$42.54$ might be computed as $[4][2][.][5][4][+][1][5][%][=]$.

Type of Math Object:

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## Mathematics Subject Classification

00A05*no label found*01A07

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