Exponential.swift
3.05 KB
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
// Copyright (c) 2014–2015 Mattt Thompson (http://mattt.me)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import Accelerate
// MARK: Exponentiation
public func exp(_ x: [Float]) -> [Float] {
var results = [Float](repeating: 0.0, count: x.count)
vvexpf(&results, x, [Int32(x.count)])
return results
}
public func exp(_ x: [Double]) -> [Double] {
var results = [Double](repeating: 0.0, count: x.count)
vvexp(&results, x, [Int32(x.count)])
return results
}
// MARK: Square Exponentiation
public func exp2(_ x: [Float]) -> [Float] {
var results = [Float](repeating: 0.0, count: x.count)
vvexp2f(&results, x, [Int32(x.count)])
return results
}
public func exp2(_ x: [Double]) -> [Double] {
var results = [Double](repeating: 0.0, count: x.count)
vvexp2(&results, x, [Int32(x.count)])
return results
}
// MARK: Natural Logarithm
public func log(_ x: [Float]) -> [Float] {
var results = [Float](x)
vvlogf(&results, x, [Int32(x.count)])
return results
}
public func log(_ x: [Double]) -> [Double] {
var results = [Double](x)
vvlog(&results, x, [Int32(x.count)])
return results
}
// MARK: Base-2 Logarithm
public func log2(_ x: [Float]) -> [Float] {
var results = [Float](x)
vvlog2f(&results, x, [Int32(x.count)])
return results
}
public func log2(_ x: [Double]) -> [Double] {
var results = [Double](x)
vvlog2(&results, x, [Int32(x.count)])
return results
}
// MARK: Base-10 Logarithm
public func log10(_ x: [Float]) -> [Float] {
var results = [Float](x)
vvlog10f(&results, x, [Int32(x.count)])
return results
}
public func log10(_ x: [Double]) -> [Double] {
var results = [Double](x)
vvlog10(&results, x, [Int32(x.count)])
return results
}
// MARK: Logarithmic Exponentiation
public func logb(_ x: [Float]) -> [Float] {
var results = [Float](x)
vvlogbf(&results, x, [Int32(x.count)])
return results
}
public func logb(_ x: [Double]) -> [Double] {
var results = [Double](x)
vvlogb(&results, x, [Int32(x.count)])
return results
}