images, available for developers of PNG supporting software. The 
complete set, available at http:/www.schaik.com/pngsuite/, contains 
a variety of images to test interlacing, gamma settings, ancillary
chunks, etc.

The images in this directory represent the basic PNG color-types:
grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
(1-8 bit) and grayscale or color images with alpha channel. You

// 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 square root
//
// DESCRIPTION:
//
// If z = x + iy,  r = |z|, then
//

// 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
//   ******@****.***

// tan coefficients
var _tanP = [...]float64{
	-1.30936939181383777646e4, // 0xc0c992d8d24f3f38

        given:
        comparer = ExhaustiveLinesSearcher.useUnifiedDiff()
        def expectedLines = ["cat", "bird", "dog"]
        def actualLines = ["kangaroo", "cat", "llama", "dog", "turtle", "cat", "moose", "dog"]

        when:
        comparer.assertLinesContainedIn(expectedLines, actualLines)

        then:

#SNG: from basn0g04-31.png
IHDR {
    width: 31; height: 31; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
00000000111111112222222233333333444444445555555566666666777777
00000000111111112222222233333333444444445555555566666666777777
00000000111111112222222233333333444444445555555566666666777777
00000000111111112222222233333333444444445555555566666666777777
11111111222222223333333344444444555555556666666677777777888888

#SNG: from basn0g02-29.png
IHDR {
    width: 29; height: 29; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
0000000055555555aaaaaaaaffffffff0000000055555555aaaaaaaaff
0000000055555555aaaaaaaaffffffff0000000055555555aaaaaaaaff
0000000055555555aaaaaaaaffffffff0000000055555555aaaaaaaaff
0000000055555555aaaaaaaaffffffff0000000055555555aaaaaaaaff
55555555aaaaaaaaffffffff0000000055555555aaaaaaaaffffffff00

// 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 sine
//
// DESCRIPTION:
//
// If
//     z = x + iy,
//
// then
//

#SNG: from basn0g01-30.png
IHDR {
    width: 30; height: 30; bitdepth: 8;
    using grayscale;
}
gAMA {1.0000}
IMAGE {
    pixels hex
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00
ffffffffffffffffffffffffffffffffffffffffffffffffffffffff0000
ffffffff0000ffffffffffff0000ffffffffffffffffffffffffff000000

#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)