To solve an equation, more than one step may be needed to find the unknown variable. Remember to check your answer by substituting the solution back into the original equation. The unknown ...

The most important part of any equation is the equals sign at its heart. Those two horizontal lines tell us that when we change one thing, we’ll see a corresponding change in another, apparently ...

Both the three- and five-step equations provide a deeper understanding of a company's ROE by examining what's changing in a company rather than looking at one simple ratio. They should be examined ...

In 1843, William Rowan Hamilton had a four-dimensional flash of insight that still shapes our three-dimensional world.

Whether it's a tricky word game or a maths puzzle, brain teasers are a fun way to keep your brain active and sharp. Maths ...

Entrepreneur Meng Weng shared the trick she learned from a friend with a Doctorate from Stanford: If you focus on improving ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years ...

"We envision that these devices may be used to produce fast approximate solutions for various partial differential equations," he said, adding that this research represents a significant step ...

So, what’s the solution for beauty fans on a budget? Step forward the Revlon One-Step Air Straight, which retails at the bargain price of £69.99. But how does it stack up against its pricier ...

The imaginary part is a multiple of the number i, "the square root of minus one," which is defined by the equation i ² = –1. By the early 1800s, several mathematicians, including Jean Argand ...