# arccos

## Definitions

• n. Abbreviation of arccosine.

• n. the inverse function of the cosine; the angle that has a cosine equal to a given number

## Etymologies

arc- +‎ cos (Wiktionary)

## Examples

• "arccos"; opchTbl [5]. code = 6; opchTbl [5]. grade =

博客园首页

• And, he apparently is well educated, as he knows the number pi and trigonometrical functions like sin, cos, tan, arcsin, arccos, arctan and the functions sqrt and exp.

Linux Journal - The Original Magazine of the Linux Community

• In this mode, with this method, you could read all dvd movies with all kinds of protections including with sony arccos protection.

• CHAPTER 11 Global Trigonometry 245 The angular length of side s is the absolute value of the di ﬀ erence in the latitudes of points Q and R: s ¼ jLat Q À Lat Rj ¼ j þ 90: 008 À ðþ50: 008Þj ¼ 90: 008 À 50: 008 ¼ 40: 008 Now that we know r, s, and q, the spherical law of cosines tells us that: cos q ¼ cos r cos s þ sin r sin s cos q and therefore the following holds: q ¼ arccos ðcos r cos s þ sin r sin s cos qÞ ¼ arccos ðcos 102: 008 Â cos 40: 008 þ sin

• {arcsin, arccos, arctan} (float | complex): float | complex

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• 0: 291926Þ = 0: 708073 ¼ 0: 350777 This means that s ¼ arccos 0.350777 ¼ 69.4652.