I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

👉 Learn how to find the extrema of a function using the second derivative test. The second derivative test states that if a function has a critical point for which f'(x) = 0, and the second ...

A dispute over how to divvy up the pot in an interrupted game of chance led early mathematicians to invent modern risk ...

Axiom Math is giving away a powerful new AI tool. But it remains to be seen if it speeds up research as much as the company hopes. Axiom Math, a startup based in Palo Alto, California, has released a ...

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. In 1997, Deep Blue, a supercomputer built by IBM, did the unexpected: it defeated chess ...

The expected number of outcomes is calculated by multiplying the probability of an event by the number of trials. Look at this guide on experimental probability and relative frequency for further ...

Mathematics provides tools for explanation and analysis in the physical, engineering, business and social sciences. These tools can help in areas as diverse as planning and evaluating market research, ...

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Robert Kelly is managing director of XTS Energy LLC, ...

Only the order of tones and semitones is different. Both keys have the same key signature, shown here:. Because they share the same key signature and the same notes, it is common to modulate or change ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Skylar Clarine is a fact-checker and expert in personal finance ...

Mental math's shortcut—pupil dilation suggests people start solving before all numbers are in People often solve simple arithmetic problems, such as basic addition, subtraction, multiplication or ...