#SNG: from basn0g04.png
IHDR {
    width: 32; height: 32; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
0000000011111111222222223333333344444444555555556666666677777777
0000000011111111222222223333333344444444555555556666666677777777
0000000011111111222222223333333344444444555555556666666677777777
0000000011111111222222223333333344444444555555556666666677777777
1111111122222222333333334444444455555555666666667777777788888888

#SNG: from basn3p04-31i.png
IHDR {
    width: 31; height: 31; bitdepth: 4;
    using color palette;
}
gAMA {1.0000}
PLTE {
    ( 34,  0,255)     # rgb = (0x22,0x00,0xff)
    (  0,255,255)     # rgb = (0x00,0xff,0xff)
    (136,  0,255)     # rgb = (0x88,0x00,0xff)
    ( 34,255,  0)     # rgb = (0x22,0xff,0x00)
    (  0,153,255)     # rgb = (0x00,0x99,0xff)
    (255,102,  0)     # rgb = (0xff,0x66,0x00)
    (221,  0,255)     # rgb = (0xdd,0x00,0xff)

#SNG: from ftp0n0g08.png
IHDR {
    width: 32; height: 32; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f
7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f
7f7f7f7f7f7f7f7f7f7f7f7f7f7fe3c9f17f7f7f7f7f7f7f7f7f7f7f7f7f7f7f
7f7f7f7f7f7f7f7f7f7f7fe8b57e655a4661a1e17f7f7f7f7f7f7f7f7f7f7f7f
7f7f7f7f7f7f7f7feebf8967614d362a2824282f5091d4fc7f7f7f7f7f7f7f7f

#SNG: from basn0g01.png
IHDR {
    width: 32; height: 32; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0000
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffff000000
ffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000
ffffffff0000ffffffffffff0000ffffffffffffffffffffffffff0000000000

#SNG: from basn0g08.png
IHDR {
    width: 32; height: 32; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f
404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f
606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f
808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f

#SNG: from basn3p02.png
IHDR {
    width: 32; height: 32; bitdepth: 2;
    using color palette;
}
gAMA {1.0000}
PLTE {
    (  0,255,  0)     # rgb = (0x00,0xff,0x00)
    (255,  0,  0)     # rgb = (0xff,0x00,0x00)
    (255,255,  0)     # rgb = (0xff,0xff,0x00)
    (  0,  0,255)     # rgb = (0x00,0x00,0xff)
}
IMAGE {
    pixels hex
ff55aa00ff55aa00
ff55aa00ff55aa00
ff55aa00ff55aa00
ff55aa00ff55aa00
00ff55aa00ff55aa

#SNG: from basn3p04.png
IHDR {
    width: 32; height: 32; bitdepth: 4;
    using color palette;
}
gAMA {1.0000}
PLTE {
    ( 34,  0,255)     # rgb = (0x22,0x00,0xff)
    (  0,255,255)     # rgb = (0x00,0xff,0xff)
    (136,  0,255)     # rgb = (0x88,0x00,0xff)
    ( 34,255,  0)     # rgb = (0x22,0xff,0x00)
    (  0,153,255)     # rgb = (0x00,0x99,0xff)
    (255,102,  0)     # rgb = (0xff,0x66,0x00)
    (221,  0,255)     # rgb = (0xdd,0x00,0xff)

    return row * pool.w_out + col;
  };

  std::vector<float> correction_data(out_shaped_type.getNumElements(), 1.0);

  const float kern_size = pool.kh * pool.kw;

  // LEMMA 1: Changing the rounding mode from floor to ceil will increase an
  // output dimension by at most 1 (see `ComputeSpatialOutDim`). This is because
  // for any `x`, `ceil(x) - floor(x) <= 1`.

// What you see here may be used freely but it comes with no support or
// guarantee.
//
//   The two known misprints in the book are repaired here in the
// source listings for the gamma function and the incomplete beta
// integral.
//
//   Stephen L. Moshier
//   ******@****.***

// Complex circular arc sine
//
// DESCRIPTION:
//
// Inverse complex sine:

// What you see here may be used freely but it comes with no support or
// guarantee.
//
//   The two known misprints in the book are repaired here in the
// source listings for the gamma function and the incomplete beta
// integral.
//
//   Stephen L. Moshier
//   ******@****.***

// sin coefficients
var _sin = [...]float64{
	1.58962301576546568060e-10, // 0x3de5d8fd1fd19ccd