Individual #spherical_trigonometry__sphericaltrigonometry the trigonometry of spherical triangles
>part of: trigonometry__trig the mathematics of triangles and trigonometric functions
>part of: pure_mathematics the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness
>part of: mathematics__math__maths__math a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
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