High-precision trigonometric solvers for sine, cosine, tangent, inverse trigonometric ratios, degrees to radians conversions, and right triangle solutions.
Calculate the trigonometric sine function for angles in degrees or radians with exact unit circle fractions.
Calculate cosine of an angle in degrees or radians with exact unit circle values and step proofs.
Calculate tangent of an angle in degrees or radians with asymptotic check (undefined at 90°, 270°).
Find the angle whose sine is x. Returns angle in both degrees and radians with domain validation [-1, 1].
Find the angle whose cosine is x in degrees and radians with domain validation [-1, 1].
Find the angle whose tangent is x. Supports all real numbers (-∞ to +∞) and outputs in degrees and radians.
Calculate hypotenuse c or leg a/b of any right triangle with step-by-step arithmetic working and square root steps.
Complete right triangle solver: enter two known values to solve all 3 sides, both acute angles, area, and perimeter.
Calculate the third side of any non-right triangle using the Law of Cosines (SAS case).
Calculate all three interior angles of a triangle given three sides (SSS) using the Law of Cosines.
Master trigonometric ratios SOH CAH TOA for right triangles. Unit circle definitions, sine, cosine, tangent formulas, and real-world angle of elevation.
Convert between radians and degrees smoothly. Why 180 degrees = pi radians, arc length formula s = r theta, and unit circle radian coordinates.
