Sine, cosine and tangent all have different positive or negative values depending on what quadrant they are in. Calculating the area of a triangle using trigonometry Trigonometry can be used to ...

The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Using a copy of [SPICE] a free circuit simulation application, I have created several sine wave sources and summed them together. Seen here, the waves combine into a square wave with it looking ...

Scott Shane is the A. Malachi Mixon III professor of entrepreneurial studies at Case Western Reserve University. His books include Illusions of Entrepreneurship: The Costly Myths That ...