sin, cos, sec and csc have period 2Pi ... On the same graph plot tan(x) and tan(2x). On the same graph plot tan(x) and tan(3x). We can sum trig functions and consider them as summing or interfering ...

Unfortunately, for many of us the terms sine and cosine (its partner ... of a periodic curve—that is, a graph that keeps repeating itself regularly. Waves breaking on a beach repeat themselves ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...

Control and inverse problems in wave equations and graphs constitute a dynamic field at the intersection of applied mathematics, engineering and physics. This area investigates how waves ...