Jeff Smith's Math Puzzle for February 7, 2025 - A circle is trapped under a sine wave, someone call the rescue squad. The ...

But not long ago someone made the discovery that the North Pole is not the only starting point that satisfies the given ...

The Calvin University Math Circle is an opportunity for 6th–8th grade students (typically 11–13 years old) to engage with exciting problems and topics in mathematics. Meetings are led by a professor ...