Sliders for frequency f and time t drive a point around a circle; readouts show rotations f·t, θ in radians and sin θ, and a checkbox runs time forward.
The claim above is what this widget demonstrates. Disagree with it?
The angle θ = 2πf·t advances one full turn every 1/f seconds, so f·t counts rotations and sin θ is the height of the rotating point.
Taught in Parameterization and substitution.
Sliders for frequency f and time t drive a point around a circle; readouts show rotations f·t, θ in radians and sin θ, and a checkbox runs time forward.
The claim above is what this widget demonstrates. Disagree with it?