In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...

When you access Wolfram Alpha, the input form is displayed. Immediately input a simple linear equation "y = 2x + 1" that somehow came up with and click "=". Then, detailed information of y = 2x + 1 is ...

Many of the resources referenced are no longer available, and links to them have been removed. Provide access to scientific and mathematical expressions for all users with disabilities. Current ...

In a new article, mathematicians describe how modern computer technology has vastly expanded our ability to discover new mathematical results. By computing mathematical expressions to very high ...

A mathematical proof is a sequence of statements that follow on logically from each other that shows that something is always true. Using letters to stand for numbers means that we can make statements ...