Amplitude calculator
Find the amplitude of any sinusoidal function y = A·sin(Bx+C)+D or y = A·cos(Bx+C)+D.
f(x) =
What is amplitude?
The amplitude is the maximum displacement from the midline. For y = A·sin(Bx+C)+D, amplitude = |A|.
y = 3sin(2x): amplitude = 3. The function oscillates between −3 and 3.
Effect on the graph
Larger amplitude = taller waves. Amplitude 1 is standard. Amplitude 0.5 makes the wave half as tall. Negative A flips the wave.
Related calculators