A\u00a0calculator<\/b>\u00a0is a machine which allows people to do\u00a0math<\/a>\u00a0operations more easily. For example, most calculators will\u00a0add<\/a>,\u00a0subtract<\/a>,\u00a0multiply<\/a>, and\u00a0divide<\/a>. Some also do\u00a0square roots<\/a>, and more complex calculators can help with\u00a0calculus<\/a>\u00a0and draw function graphs. Calculators are found everywhere. A\u00a0smartphone<\/a>\u00a0or other\u00a0computer<\/a>\u00a0can also act as a calculator.<\/p>\n Some calculators, like the\u00a0abacus<\/a>, will work without electricity. Others, like the electronic calculator, use batteries. Some calculators are simple, and can only\u00a0add<\/a>,\u00a0subtract<\/a>,\u00a0multiply<\/a>\u00a0and\u00a0divide<\/a>, and sometimes take\u00a0square roots<\/a>. Scientific calculators can do many other things, such as use\u00a0exponents<\/a>\u00a0(or powers or indices) and\u00a0trigonometry<\/a>\u00a0functions.<\/p>\n\t\t\t\t![\"calculator\"](\"https:\/\/imsfund.com\/wp-content\/uploads\/2021\/07\/calculator.jpeg\" "\\"calculator\\"")
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