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Is it possible to calculate integrals with Excel?Hi all, I wanted to calculate some functions containing integrals using
Excel, but it doesn't seem my Excel can calculate any kind of integral. Any help? F. |

Hi Francesco,
Hi all, I wanted to calculate some functions containing integrals using Excel, but it doesn't seem my Excel can calculate any kind of integral. Any help? integrals.... long time ago.... well, you cannot enter integrals directly, _you_ have to make the algebra stuff until you have a formula that can be entered into excel. arno |

Hi Arno, I hoped there was a more straight forward way of doing it, many
thanks anyway, F. "arno" wrote: Hi Francesco, Hi all, I wanted to calculate some functions containing integrals using Excel, but it doesn't seem my Excel can calculate any kind of integral. Any help? integrals.... long time ago.... well, you cannot enter integrals directly, _you_ have to make the algebra stuff until you have a formula that can be entered into excel. arno |

Excel does not natively offer calculus functionality. Some functions
can be integrated in closed form. http://integrals.wolfram.com/ or http://maxima.sourceforge.net/ may help identify some of these if your calculus is rusty. Where closed form integrals do not exist (or where you do not know the function), there are many methods for numeric integration. http://www.stfx.ca/people/bliengme/E...UnderCurve.htm implements a couple of simple methods in Excel. Chapter 4 of Numerical Recipes in ... goes into more detail in C, C++, Fortran, or Pascal (out of print). There may even have been one in Basic at one time. The C and Fortran versions are available on-line http://www.library.cornell.edu/nr/bookcpdf.html http://www.library.cornell.edu/nr/cbookfpdf.html Fortran is probably easier to translate into VBA than C. Jerry Francesco wrote: Hi all, I wanted to calculate some functions containing integrals using Excel, but it doesn't seem my Excel can calculate any kind of integral. Any help? |

Hi Jerry, thank you very much for your reply and references.
Francesco "Jerry W. Lewis" wrote: Excel does not natively offer calculus functionality. Some functions can be integrated in closed form. http://integrals.wolfram.com/ or http://maxima.sourceforge.net/ may help identify some of these if your calculus is rusty. Where closed form integrals do not exist (or where you do not know the function), there are many methods for numeric integration. http://www.stfx.ca/people/bliengme/E...UnderCurve.htm implements a couple of simple methods in Excel. Chapter 4 of Numerical Recipes in ... goes into more detail in C, C++, Fortran, or Pascal (out of print). There may even have been one in Basic at one time. The C and Fortran versions are available on-line http://www.library.cornell.edu/nr/bookcpdf.html http://www.library.cornell.edu/nr/cbookfpdf.html Fortran is probably easier to translate into VBA than C. Jerry Francesco wrote: Hi all, I wanted to calculate some functions containing integrals using Excel, but it doesn't seem my Excel can calculate any kind of integral. Any help? |

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