// multi-utility computation suite · offline · instant · precise
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math.double-angle-formula Calculator
Computes double-angle (sin 2θ, cos 2θ, tan 2θ) and half-angle formulas from a given angle and verifies the identities numerically. Double-angle formulas arise in integration (∫sin²x dx requires the substitution cos 2θ = 1 − 2sin²θ).
Inputs
Theta Deg
Reference formula or conversion factor shown for context.
Results
sin(2θ)
Sample size or count used in the calculation.
cos(2θ)
Reference formula or conversion factor shown for context.