The calculator on your Apple devices can do more than add, subtract, multiply and divide. Here's how it can help you with all kinds of math problems.

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee ...

Short-term memory is finite and fills up quickly. Here are 7 ways we can free up space for clearer-headed mathematical ...

Poonkulali Thangavelu has worked 10+ years as a writer and editor covering investment, personal finance, and mortgage-related topics. Suzanne is a content marketer, writer, and fact-checker. She holds ...

The cost of owning a new vehicle fell from 2024, AAA data show. Higher electricity and lower gas prices also make EVs costlier to own than gas cars.

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For Musk, the real problem is America’s ballooning debt. “It’s good to have talented people in the administration. But at the ...

Devon Energy is a leading US shale oil producer, thriving with a breakeven WTI price near $45, well below industry averages.

Musk isn’t the only billionaire sounding alarms. Ray Dalio, founder of the world’s largest hedge fund, Bridgewater Associates ...

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.