Whole-column references in Excel are silent performance killers, often forcing the program to manage a range of over a ...

Tableau links them: When you add fields from the secondary source to your viz, Tableau aggregates each source separately and ...

Create a CRM using Excel with dropdown customer selection and FILTER plus XLOOKUP, saving time while keeping leads and deals ...

Explore Excel’s latest new features such as Translate and the Formula-by-Examples tool, so multilingual reports update automatically and save ...

Here we look at a function as a mapping diagram. The inputs to the function g are along the real number line a the top, the outputs of g are on the real number line in the middle. The green point A ...

Move the point T along the graph of y=sin(x) by moving the slider. The slope function (derivative) is then traced out in blue. Can you identify the graph of the derivative? This is a Java Applet ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in ...