Archive for the ‘Mathematics’ Category

Here's an interactive graph where you can investigate some important trigonometric identities.

How do we compare pollution caused by different substances and give meaningful health advisories? Singapore's current haze season gives an example.

MathGraph32 is a great free tool for exploring 2D and 3D math concepts.

Scientists used Jacob's Staff during the Renaissance to find heights and distances, using trigonometry. It was a forerunner to the sextant.

Here's an interactive graph where you can explore straight lines, parabolas, cubics and Bezier curves.

Is Santa's frantic dash around the world each Christmas Eve, even possible?

Here's an interactive graph that allows you to explore the concepts behind the Fourier Series.

Here's a real-life application of calculus posed by a roller door engineer.

A reader asked how to find the volume of a pendant-shaped container. We need volume of solid of revolution.

How can we enjoy music while traveling on noisy public transport? What is the math behind noise canceling headphones?