Created
March 21, 2021 17:06
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Mandelbrot set rendered with few ASCII characters. Swift 5+ version derived from old C-Program
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| // ASCII Mandelbrot Set | |
| let left:Float = -2.0 | |
| let right:Float = 1.0 | |
| let stepsX = 150 | |
| let deltaX:Float = (right - left) / Float(stepsX) | |
| let top:Float = 1.5 | |
| let bottom:Float = -1.5 | |
| let stepsY = 60 | |
| let deltaY:Float = -(top - bottom) / Float(stepsY) | |
| var x, y, k:Int | |
| var b = [" ", ".", ":", ",", ";", "!", "/", ">", ")", "|", "&", "I", "H", "%", "*", "#"] | |
| var r, i, z, Z, t, c, C: Float | |
| var myInt:Int | |
| var u:Double | |
| for i in stride(from: top, through: bottom, by: deltaY) { | |
| for r in stride(from: left, to: right, by: deltaX) { | |
| z = 0 | |
| Z = 0 | |
| var k = 0 | |
| while k < 112 { | |
| t = z*z - Z*Z + r | |
| Z = 2*z*Z + i | |
| z=t | |
| if (z*z + Z*Z > 10) { break } | |
| k += 1 | |
| } | |
| print( b[k%16], terminator:"") | |
| } | |
| print("") | |
| } |
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