Trigonometric Functions

sin(z) cos(z) tan(z)
sec(z) csc(z) cot(z)

Return the trigonometric functions sine, cosine, tangent, secant, cosecant, and cotangent of z, respectively.

sinc(z) is a special function which correctly evaluates sin(z)/z = 1 in the limit as z approaches 0.

Arguments:

Notes:

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