Approximating cos(43) with error less than $8/60000$
13023
Compute Taylor error of $10^{-5}$ for $\cos(\pi/20)$
106867
Limit of $\cos(x)/x$ as $x$ approaches $0$
74143
Simplifying and evaluating $\cot 70^\circ+4\cos 70^\circ$
138847
Tricky trigonometric sum evaluation
8257
Subtracting very small probabilities - How to compute?
76163
Math.cos() gives wrong result
77975
How to force correct answers for Integrals of Cos[mx]*Cos[nx]?
112318
Estimating the integrated Tchebychev function and calculating its error
127742
NMinimize in one-dimensional Interval
140395
Fit data with linear combinations of Cos and Sin
10329
Algorithm for minimization of sum of squares in regression packages
1401
$\sqrt{7\sqrt{7\sqrt{7\sqrt{7\sqrt{7\cdots}}}}}$ approximation
23648
How to approximate the student-t CDF at a point without the hypergeometric function?
156399
Chebyshev Approximation
122145
Evaluating Limit - $(1-(\cos x)^{\sin x})/(x^3)$
23091
Compute cos(5°) to 5 decimal places with Maclaurin's Series
68968
Math.cos inaccurancy