In the investment world, it’s common to discuss average rates of return. It’s not sufficient, however, to simply add up historical returns and divide by how many there are. The proper way to calculate ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

The Mathematical Gazette is the original journal of the Mathematical Association and it is now over a century old. Its readership is a mixture of school teachers, college and university lecturers, ...

Each term in this sequence is doubling (multiplying by 2) to create the next term. Number sequences are sets of numbers that follow a pattern or a rule. If the rule is to multiply or divide by a ...

AskMath announced the launch of an AI Math Solver designed to provide detailed problem-solving guidance for a variety of ...

Let 𝐺 = (𝑉,𝐸), 𝑉={1,2,...,𝑛}, be a simple connected graph of order𝑛, size 𝑚 with vertex degree sequence 𝑑1 ≥ 𝑑2 ≥ ... ≥ 𝑑𝑛 > 0, 𝑑𝑖 = 𝑑(𝜐𝑖). The geometric–arithmetic topological index ...