Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Robert Kelly is managing director of XTS Energy LLC ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Robert Kelly is managing director of ...

The SCAN function lives in a single cell and spills the results down the column, ensuring my totals are always structurally and mathematically correct. The SCAN function has three arguments: ...

Using Excel, you can define and calculate placement of data within the spreadsheet by specifying the column and row identifiers together. The columns are identified using letters across the top bar on ...

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Probability theory forms the mathematical backbone for quantifying uncertainty and random events, providing a rigorous language with which to describe both everyday phenomena and complex scientific ...

The history of computers began with primitive designs in the early 19th century and went on to change the world during the 20th century. When you purchase through links on our site, we may earn an ...