Periodic Rate Functions in Excel. Microsoft Excel 2010 can be a huge help for a business when it comes to crunching the businesses numbers. Excel has a number of financial functions revolving ...

We consider the problem of estimating a common period for a set of functions sampled at irregular intervals. The motivating problem arises in astronomy, where the functions represent a star's observed ...

In support of efforts to foreground functions as central objects of study in algebra, this study provides evidence of how secondary students use trigonometric functions in contextual tasks. The author ...