Math — Harmonic (R) Form
Writing a cosθ + b sinθ as a single sinusoid.
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a\cos\theta + b\sin\theta = R\cos(\theta - \alpha)
R = \sqrt{a^2 + b^2}
\tan\alpha = \frac{b}{a}
\text{max} = R, \quad \text{min} = -R
Writing a cosθ + b sinθ as a single sinusoid.
a\cos\theta + b\sin\theta = R\cos(\theta - \alpha)
R = \sqrt{a^2 + b^2}
\tan\alpha = \frac{b}{a}
\text{max} = R, \quad \text{min} = -R