During many Calculus courses the Concept of Limits are taught to students by showing them how, but not why. ... Now Limits have certain rules to follow if they want to be Limits. ... Since, we already know about the rule of left and right hand limits so we"re one third of the way there. ... This is used when your dividing expressions with variables such as x^3 or x to the third power. ... Limits are an integral part of calculus. ...

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• Approx Pages: 2
• Grade Level: High School

Another early calculating tool was called the "Slide Rule". ... The slide rule made multiplication and division much easier. Engineers and scientists used the slide rules until the invention of calculator in the early 1970's. ... Some have the ability to do complicated geometric, algebraic, trigonometric, statistical, and calculus functions. Now calculators operate on electrical power either by batteries, or solar cells. ...

• Word Count: 310
• Approx Pages: 1
• Grade Level: High School