Purpose of Integrals
Date: 4/13/96 at 17:14:38 From: Anonymous Subject: What are Integrals Used For? I am studying calculus, but the book I am using does not say what integrals are used for, or what their purpose is. I think it has something to do with physics.
Date: 6/6/96 at 14:36:26 From: Doctor Leigh Subject: Re: What are Integrals Used For? In the pure math world integrals are used to find the area under a curve on a graph. In physics many of the formulas that are used are derived from other formulas using integrals. In many of the formulas dealing with electric fields and forces integrals are used to make a complex formula more simple in specific cases. For example if you have a charged particle inside of a sphere the maginitude of the electric field outside of the sphere is normally a very complex formula. Another formula must be calculated for use inside of the sphere. But it just so happens that the formula for the inside of the sphere is the integral of the formula for outside the sphere. Thank you for your question. -Doctor Leigh Ann, The Math Forum
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