DSP库的sin和cos表的生成

eric2013

DSP库的sin和cos表生成：

/**
  @par
  Example code for the generation of the floating-point sine table:
  <pre>
  tableSize = 512;
  for (n = 0; n < (tableSize + 1); n++)
  {
        sinTable[n] = sin(2*PI*n/tableSize);
  }</pre>
@par
  where PI value is  3.14159265358979
*/

1. const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1] = {
   
2.    0.00000000f, 0.01227154f, 0.02454123f, 0.03680722f, 0.04906767f, 0.06132074f,
   
3.    0.07356456f, 0.08579731f, 0.09801714f, 0.11022221f, 0.12241068f, 0.13458071f,
   
4.    0.14673047f, 0.15885814f, 0.17096189f, 0.18303989f, 0.19509032f, 0.20711138f,
   
5.    0.21910124f, 0.23105811f, 0.24298018f, 0.25486566f, 0.26671276f, 0.27851969f,
   
6.    0.29028468f, 0.30200595f, 0.31368174f, 0.32531029f, 0.33688985f, 0.34841868f,
   
7.    0.35989504f, 0.37131719f, 0.38268343f, 0.39399204f, 0.40524131f, 0.41642956f,
   
8.    0.42755509f, 0.43861624f, 0.44961133f, 0.46053871f, 0.47139674f, 0.48218377f,
   
9.    0.49289819f, 0.50353838f, 0.51410274f, 0.52458968f, 0.53499762f, 0.54532499f,
   
10.    0.55557023f, 0.56573181f, 0.57580819f, 0.58579786f, 0.59569930f, 0.60551104f,
    
11.    0.61523159f, 0.62485949f, 0.63439328f, 0.64383154f, 0.65317284f, 0.66241578f,
    
12.    0.67155895f, 0.68060100f, 0.68954054f, 0.69837625f, 0.70710678f, 0.71573083f,
    
13.    0.72424708f, 0.73265427f, 0.74095113f, 0.74913639f, 0.75720885f, 0.76516727f,
    
14.    0.77301045f, 0.78073723f, 0.78834643f, 0.79583690f, 0.80320753f, 0.81045720f,
    
15.    0.81758481f, 0.82458930f, 0.83146961f, 0.83822471f, 0.84485357f, 0.85135519f,
    
16.    0.85772861f, 0.86397286f, 0.87008699f, 0.87607009f, 0.88192126f, 0.88763962f,
    
17.    0.89322430f, 0.89867447f, 0.90398929f, 0.90916798f, 0.91420976f, 0.91911385f,
    
18.    0.92387953f, 0.92850608f, 0.93299280f, 0.93733901f, 0.94154407f, 0.94560733f,
    
19.    0.94952818f, 0.95330604f, 0.95694034f, 0.96043052f, 0.96377607f, 0.96697647f,
    
20.    0.97003125f, 0.97293995f, 0.97570213f, 0.97831737f, 0.98078528f, 0.98310549f,
    
21.    0.98527764f, 0.98730142f, 0.98917651f, 0.99090264f, 0.99247953f, 0.99390697f,
    
22.    0.99518473f, 0.99631261f, 0.99729046f, 0.99811811f, 0.99879546f, 0.99932238f,
    
23.    0.99969882f, 0.99992470f, 1.00000000f, 0.99992470f, 0.99969882f, 0.99932238f,
    
24.    0.99879546f, 0.99811811f, 0.99729046f, 0.99631261f, 0.99518473f, 0.99390697f,
    
25.    0.99247953f, 0.99090264f, 0.98917651f, 0.98730142f, 0.98527764f, 0.98310549f,
    
26.    0.98078528f, 0.97831737f, 0.97570213f, 0.97293995f, 0.97003125f, 0.96697647f,
    
27.    0.96377607f, 0.96043052f, 0.95694034f, 0.95330604f, 0.94952818f, 0.94560733f,
    
28.    0.94154407f, 0.93733901f, 0.93299280f, 0.92850608f, 0.92387953f, 0.91911385f,
    
29.    0.91420976f, 0.90916798f, 0.90398929f, 0.89867447f, 0.89322430f, 0.88763962f,
    
30.    0.88192126f, 0.87607009f, 0.87008699f, 0.86397286f, 0.85772861f, 0.85135519f,
    
31.    0.84485357f, 0.83822471f, 0.83146961f, 0.82458930f, 0.81758481f, 0.81045720f,
    
32.    0.80320753f, 0.79583690f, 0.78834643f, 0.78073723f, 0.77301045f, 0.76516727f,
    
33.    0.75720885f, 0.74913639f, 0.74095113f, 0.73265427f, 0.72424708f, 0.71573083f,
    
34.    0.70710678f, 0.69837625f, 0.68954054f, 0.68060100f, 0.67155895f, 0.66241578f,
    
35.    0.65317284f, 0.64383154f, 0.63439328f, 0.62485949f, 0.61523159f, 0.60551104f,
    
36.    0.59569930f, 0.58579786f, 0.57580819f, 0.56573181f, 0.55557023f, 0.54532499f,
    
37.    0.53499762f, 0.52458968f, 0.51410274f, 0.50353838f, 0.49289819f, 0.48218377f,
    
38.    0.47139674f, 0.46053871f, 0.44961133f, 0.43861624f, 0.42755509f, 0.41642956f,
    
39.    0.40524131f, 0.39399204f, 0.38268343f, 0.37131719f, 0.35989504f, 0.34841868f,
    
40.    0.33688985f, 0.32531029f, 0.31368174f, 0.30200595f, 0.29028468f, 0.27851969f,
    
41.    0.26671276f, 0.25486566f, 0.24298018f, 0.23105811f, 0.21910124f, 0.20711138f,
    
42.    0.19509032f, 0.18303989f, 0.17096189f, 0.15885814f, 0.14673047f, 0.13458071f,
    
43.    0.12241068f, 0.11022221f, 0.09801714f, 0.08579731f, 0.07356456f, 0.06132074f,
    
44.    0.04906767f, 0.03680722f, 0.02454123f, 0.01227154f, 0.00000000f, -0.01227154f,
    
45.    -0.02454123f, -0.03680722f, -0.04906767f, -0.06132074f, -0.07356456f,
    
46.    -0.08579731f, -0.09801714f, -0.11022221f, -0.12241068f, -0.13458071f,
    
47.    -0.14673047f, -0.15885814f, -0.17096189f, -0.18303989f, -0.19509032f,
    
48.    -0.20711138f, -0.21910124f, -0.23105811f, -0.24298018f, -0.25486566f,
    
49.    -0.26671276f, -0.27851969f, -0.29028468f, -0.30200595f, -0.31368174f,
    
50.    -0.32531029f, -0.33688985f, -0.34841868f, -0.35989504f, -0.37131719f,
    
51.    -0.38268343f, -0.39399204f, -0.40524131f, -0.41642956f, -0.42755509f,
    
52.    -0.43861624f, -0.44961133f, -0.46053871f, -0.47139674f, -0.48218377f,
    
53.    -0.49289819f, -0.50353838f, -0.51410274f, -0.52458968f, -0.53499762f,
    
54.    -0.54532499f, -0.55557023f, -0.56573181f, -0.57580819f, -0.58579786f,
    
55.    -0.59569930f, -0.60551104f, -0.61523159f, -0.62485949f, -0.63439328f,
    
56.    -0.64383154f, -0.65317284f, -0.66241578f, -0.67155895f, -0.68060100f,
    
57.    -0.68954054f, -0.69837625f, -0.70710678f, -0.71573083f, -0.72424708f,
    
58.    -0.73265427f, -0.74095113f, -0.74913639f, -0.75720885f, -0.76516727f,
    
59.    -0.77301045f, -0.78073723f, -0.78834643f, -0.79583690f, -0.80320753f,
    
60.    -0.81045720f, -0.81758481f, -0.82458930f, -0.83146961f, -0.83822471f,
    
61.    -0.84485357f, -0.85135519f, -0.85772861f, -0.86397286f, -0.87008699f,
    
62.    -0.87607009f, -0.88192126f, -0.88763962f, -0.89322430f, -0.89867447f,
    
63.    -0.90398929f, -0.90916798f, -0.91420976f, -0.91911385f, -0.92387953f,
    
64.    -0.92850608f, -0.93299280f, -0.93733901f, -0.94154407f, -0.94560733f,
    
65.    -0.94952818f, -0.95330604f, -0.95694034f, -0.96043052f, -0.96377607f,
    
66.    -0.96697647f, -0.97003125f, -0.97293995f, -0.97570213f, -0.97831737f,
    
67.    -0.98078528f, -0.98310549f, -0.98527764f, -0.98730142f, -0.98917651f,
    
68.    -0.99090264f, -0.99247953f, -0.99390697f, -0.99518473f, -0.99631261f,
    
69.    -0.99729046f, -0.99811811f, -0.99879546f, -0.99932238f, -0.99969882f,
    
70.    -0.99992470f, -1.00000000f, -0.99992470f, -0.99969882f, -0.99932238f,
    
71.    -0.99879546f, -0.99811811f, -0.99729046f, -0.99631261f, -0.99518473f,
    
72.    -0.99390697f, -0.99247953f, -0.99090264f, -0.98917651f, -0.98730142f,
    
73.    -0.98527764f, -0.98310549f, -0.98078528f, -0.97831737f, -0.97570213f,
    
74.    -0.97293995f, -0.97003125f, -0.96697647f, -0.96377607f, -0.96043052f,
    
75.    -0.95694034f, -0.95330604f, -0.94952818f, -0.94560733f, -0.94154407f,
    
76.    -0.93733901f, -0.93299280f, -0.92850608f, -0.92387953f, -0.91911385f,
    
77.    -0.91420976f, -0.90916798f, -0.90398929f, -0.89867447f, -0.89322430f,
    
78.    -0.88763962f, -0.88192126f, -0.87607009f, -0.87008699f, -0.86397286f,
    
79.    -0.85772861f, -0.85135519f, -0.84485357f, -0.83822471f, -0.83146961f,
    
80.    -0.82458930f, -0.81758481f, -0.81045720f, -0.80320753f, -0.79583690f,
    
81.    -0.78834643f, -0.78073723f, -0.77301045f, -0.76516727f, -0.75720885f,
    
82.    -0.74913639f, -0.74095113f, -0.73265427f, -0.72424708f, -0.71573083f,
    
83.    -0.70710678f, -0.69837625f, -0.68954054f, -0.68060100f, -0.67155895f,
    
84.    -0.66241578f, -0.65317284f, -0.64383154f, -0.63439328f, -0.62485949f,
    
85.    -0.61523159f, -0.60551104f, -0.59569930f, -0.58579786f, -0.57580819f,
    
86.    -0.56573181f, -0.55557023f, -0.54532499f, -0.53499762f, -0.52458968f,
    
87.    -0.51410274f, -0.50353838f, -0.49289819f, -0.48218377f, -0.47139674f,
    
88.    -0.46053871f, -0.44961133f, -0.43861624f, -0.42755509f, -0.41642956f,
    
89.    -0.40524131f, -0.39399204f, -0.38268343f, -0.37131719f, -0.35989504f,
    
90.    -0.34841868f, -0.33688985f, -0.32531029f, -0.31368174f, -0.30200595f,
    
91.    -0.29028468f, -0.27851969f, -0.26671276f, -0.25486566f, -0.24298018f,
    
92.    -0.23105811f, -0.21910124f, -0.20711138f, -0.19509032f, -0.18303989f,
    
93.    -0.17096189f, -0.15885814f, -0.14673047f, -0.13458071f, -0.12241068f,
    
94.    -0.11022221f, -0.09801714f, -0.08579731f, -0.07356456f, -0.06132074f,
    
95.    -0.04906767f, -0.03680722f, -0.02454123f, -0.01227154f, -0.00000000f
    
96. };

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