1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
--- status: DRAFT
--- author(s): L. Gold
--- notes:
document {
Key => atan,
Headline => "compute the arctangent",
Usage => "atan x"
}
document {
Key => {(atan2,RR,RR),atan2,
(atan2, ZZ, ZZ),(atan2, QQ, ZZ),(atan2, ZZ, QQ),
(atan2, QQ, QQ),(atan2, RR, ZZ),(atan2, ZZ, RR),(atan2, QQ, RR),
(atan2, RR, QQ)
},
Headline => "compute an angle of a certain triangle",
Usage => "atan2(y,x)",
Inputs => { "y" => RR, "x" => RR },
Outputs => {
RR => { "the angle (in radians) formed with the x-axis by the ray from the origin to the point ", TT "(x,y)" }
},
EXAMPLE {
"atan2(1,0)",
"atan2(0,1)",
"atan2(-1,-1)"
},
SeeAlso => { atan }
}
document {
Key => {(atan,RR),(atan,ZZ),(atan,CC),(atan, QQ)},
Headline => "compute the arctangent of a number ",
Usage => "atan x",
Inputs => { "x" => RR },
Outputs => {
RR => {"the arctangent (in radians) of ", TT "x"}
},
EXAMPLE {
"atan 1",
"abs atan 1 == pi/4"
},
SeeAlso => { atan2 }
}
document {
Key => {acot,(acot,Number)},
Headline => "compute the inverse cotangent",
Usage => "acot x",
Inputs => { "x" => RR },
Outputs => {
RR => {"the arccotangent (in radians) of ", TT "x"}
},
EXAMPLE {
"acot 2",
}
}
|
