Approximation to solve an oblique triangle
SMRTR summary
A 1949 math paper by H.E. Stelson introduced a formula to approximate angles in oblique triangles without using inverse trig functions. Using a power series approach, the method calculates angle A via semiperimeter, achieving accuracy to five decimal places when compared against exact values from the law of cosines.
SMRTR provides this summary for quick context. The original article belongs to John D. Cook.
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