REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...

Gnumeric is a lightweight spreadsheet program that is fast and feature complete. Gnumeric can create a calendar or perform any other numbers-based task. (click image to enlarge) Much like its chief ...

This page accompanies the Lightspeed activity guide. For help with working out averages (or means), take a look at either Skillswise or Bitesize. Once you have an average for the distance between the ...