L-system: example, fractal binary tree

Вираз 19: "D" equals "R" left parenthesis, "L" , left bracket, negative 1 , negative 1 , 0 , right bracket , right parenthesis

Вираз 20: "N" equals length left parenthesis, "D" , right parenthesis

A: added increments in angle. X,Y: constructed locations.

Вираз 22: "A" left parenthesis, "p" , right parenthesis equals Start sum from "k" equals 1 to "p" minus 1, end sum, "M" left parenthesis, "k" , "p" , right parenthesis left brace, "D" left bracket, "k" , right bracket equals positive 1 : positive 45 , "D" left bracket, "k" , right bracket equals negative 1 : negative 45 , 0 , right brace

Вираз 23: "X" left parenthesis, "p" , right parenthesis equals negative Start sum from "m" equals 1 to "p" , end sum, "S" left parenthesis, "m" , right parenthesis "M" left parenthesis, "m" , "p" , right parenthesis sine left parenthesis, StartFraction, pi Over 180 , EndFraction "A" left parenthesis, "m" , right parenthesis , right parenthesis

Вираз 24: "Y" left parenthesis, "p" , right parenthesis equals Start sum from "m" equals 1 to "p" , end sum, "S" left parenthesis, "m" , right parenthesis "M" left parenthesis, "m" , "p" , right parenthesis cosine left parenthesis, StartFraction, pi Over 180 , EndFraction "A" left parenthesis, "m" , right parenthesis , right parenthesis

Z: stack depth. M: mask all ops between deeper pushs/pops S:select step operations

Вираз 26: "Z" equals Start sum from "n" equals 1 to left bracket, 1... "N" , right bracket , end sum, left brace, "D" left bracket, "n" , right bracket equals positive 1 : 1 , "D" left bracket, "n" , right bracket equals negative 1 : negative 1 , 0 , right brace

Вираз 27: "M" left parenthesis, "m" , "p" , right parenthesis equals left brace, "Z" left bracket, "m" , right bracket equals min left parenthesis, "Z" left bracket, "m" ... "p" , right bracket , right parenthesis : 1 , 0 , right brace

Вираз 28: "S" left parenthesis, "m" , right parenthesis equals left brace, "D" left bracket, "m" , right bracket equals "s" : 1 , "D" left bracket, "m" , right bracket equals "b" : .5 , 0 , right brace

Вираз 29: left bracket, left brace, "D" left bracket, "j" plus 1 , right bracket equals 0 : left parenthesis, 0 , StartFraction, 0 Over 0 , EndFraction , right parenthesis , left parenthesis, "X" left parenthesis, "j" , right parenthesis , "Y" left parenthesis, "j" , right parenthesis , right parenthesis , right brace for "j" equals left bracket, 0... "N" , right bracket , right bracket

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ще 81 рядків

"L"	"Z"	left bracket, 1... "N" , right bracket
			r1c5:
			r2c5:
			r3c5:
			r4c5:
			r5c5:
			r6c5:
			r7c5:
			r89c5:
			r90c5:
			r91c5:
			r92c5:
			r93c5:

за підтримки