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12 lines
330 B
Plaintext
12 lines
330 B
Plaintext
2dbsplinecurve b1 3 5 0 4 1 1 2 1 3 1 4 4 0 0 1 1 2 1 2 2 1 2 2 1 3 2 1 4 2 1 5 4 1
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2dcvalue b1 2.0 x y dx dy
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set delta 0.01
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set yvalue [dval y]
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repeat 100 {
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cmovetangent b1 2.0 x $yvalue dx dy 1
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set yvalue [expr $yvalue + $delta ]
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repaint }
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copy b1 result
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set length 7.7885445456401925
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