Page 164 - Excel for Scientists and Engineers: Numerical Methods
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CHAPTER 7                    INTEGRATION                             141





























                      Figure 7-14.  Integrating from a lower limit to an upper limit of infinity.
                               Results returned by the Integrate custom function.
                  (folder 'Chapter 07 Examples', workbook 'Integration', sheet 'Integrating to infinity by sum')



                Distance Traveled Along a Curved Path
                   The  length  of  a  plane  curve  can  be  estimated  by  dividing  the  curve  into
                segments, as in Figure 7-1 5, and approximating the length of the curve segment
                by the straight line AB.  The length of AB = d  m    .  The distance along

                the curve is found by summing the lengths of the segments.


















                            Figure 7-15. Approximating the distance along a curve AB
                                  by the length of the straight line segment AB.
                   (folder 'Chapter 07 Examples', workbook 'Curve Distance', sheet 'Curve Distance (Circle)')
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