Math note 3
The phase, kx+w
measured in radians. When you calculate the value of sin(kx+w
- set your calculator in the radian angle mode,
- if you want to work in the degree mode, make sure that you convert
the phase into degrees.
Radians or degrees
A sinusoidal wave is described by
where y and x are in meters and t in seconds. Find the displacement at
x = 6.0 m and at t = 4.0 s.
Calculator: rad mode
Calculator: deg mode