Casio ClassPad II Custom Commands

aroc(r, t, a, b)

• r is a vector in terms of t
• t is a variable name
• a is the t-value of the starting point
• b is the t-value of the ending point

Returns the arc length of r between t = a and t = b.

Example

Find the arc length of the curve described by \(x = \sin(2t)\) and \(y = 2\cos(t)\), between \(t = 0\) and \(t = 2\pi\). (2018 Specialist Exam 2 Section A Question 7)

Contributed by Nathan Chen