Casio ClassPad II Custom Commands

cis(θ)

• θ is an angle

Returns cos(θ) + i sin(θ).

Example

Find \(4 \mathrm{cis} \left( -\dfrac{2\pi}{3} \right)\) in cartesian form. (2018 Specialist Exam 2 Section A Question 4)

Contributed by Nhan