intprod

Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: >1.00 Current .dvrc Version: 1.29 Description Product of consecutive integers Arguments and Return Values Arguments: Two scalar numeric inputs Return Value: The product of all integers between the two inputs (inclusive) Usage Syntax: intprod(a, b) intprod(1, n) = fact(n) If the first input is negative and the second is positive, the product will be zero (since the range includes zero), but the function will not warn you. The function finds an upper boundary for the product by taking double(b)^(b - a + 1). If the value of that upper limit is less than intmax (2,147,483,647), the returned value will be integer format. If it is greater, the returned value will be double format. If no arguments are input, intprod() prints its description, as shown below. Examples dv> intprod() Returns product of consecutive integers intprod(a, b) returns product of integers a through b (inclusive) Both inputs must be scalar (1x1x1). S.Marshall 11-18-2009 0 dv> intprod(1, 7) 5040 dv> intprod(-1, 7) 0 dv> intprod(1, 6//7) Error! Both inputs must be scalar. 0 dv> intprod(133, 138) 6186268559520.00

DavinciWiki Mini-Nav Bar Contents Functions Function Categories Common Procedures Glossary Download Davinci Change Log News Mailing List Contact Developers davinci-dev [AT] mars.asu.edu All other topics See navigation on the left Major Sub-Functions double Related Functions fact nCk nPk product math.dvrc intprod() Recent Library Changes Change Log Created On: 11-18-2009 Modified On: 11-18-2009