Sine Wave pine

//@version=5
indicator('Sine Wave', overlay=false)
// Define amplitude, frequency, and phase
pi = 3.14159
amplitude = 50
frequency = 2 * pi / 20
phase = 0

inp = input(close)
// Generate sine wave
sine_wave = amplitude * math.sin(frequency * inp + phase)
// Plot sine wave on price chart
plot(sine_wave, color=color.new(color.red, 0), linewidth=2)