This video explains how the dollar sign is used in Excel formulas to control whether cell references stay fixed or change ...

Abstract: In a paper by Willems et al., it was shown that persistently exciting data can be used to represent the input-output behavior of a linear system. Based on this fundamental result, we derive ...

Numbers in rows tell one story, but charts and graphs reveal patterns you might otherwise miss. Create a simple line graph ...

If you've ever tried building a product catalog in Excel, you know the headache — images float over cells, they don't move ...

Custom pharmacy functions enabling a user to calculate patient metrics, lab values, and drug dosing. With the Pharmacy Function Library, you can perform commonly used clinical pharmacy calculations.