Sine/Cosine Approximations Simplify Controller Operation

Programming languages often include sine and cosine functions. They simplify programming, but consume valuable memory space and computation time. This can be overcome using simple approximations.

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Bhāskara I's sine approximation formula - Wikipedia

Bhāskara I's sine approximation formula - Wikipedia

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Trigonometric Ratios of 90 Degree Plus Theta

sin (90- teta) is equal to​