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Talk:Feigenbaum constant calculation: Difference between revisions
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→degree of accuracy with more precision during computing: added arrow pointing to last accurate decimal digit.
m (→degree of accuracy with more precision during computing: corrected a misspelling.) |
m (→degree of accuracy with more precision during computing: added arrow pointing to last accurate decimal digit.) |
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The task would be improved if there was a clearer description of how to calculate the constant given than the hidden, math-centric Wikipedia text. The target audience are programmers, and a I think a given method of calculation would allow for better comparison of solutions. [[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 10:47, 18 September 2018 (UTC)
All the solutions seem to be based on the paper [http://keithbriggs.info/documents/how-to-calc.pdf How to calculate the Feigenbaum constants on your PC. Aust. Math. Soc. Gazette 16, 89.], from [http://keithbriggs.info Keith Briggs]. [[User:Laurence|Laurence]] ([[User talk:Laurence|talk]]) 18:04, 20 November 2019 (UTC)
==true value of Feigenbaum's constant==
Since the true value of Feigenbaum's constant isn't shown here on this Rosetta Code task, I added the displaying of it in the REXX example, along with the displaying of the number of correct decimal digits for each (<big>'''i'''</big>) iteration. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 06:28, 19 September 2018 (UTC)
[http://www.plouffe.fr/simon/constants/feigenbaum.txt Here] is the value of the Feigenbaum's constant up to 1,018 decimal places. [[User:Laurence|Laurence]] ([[User talk:Laurence|talk]]) 18:04, 20 November 2019 (UTC)
==degree of accuracy with more precision during computing==
Line 41 ⟶ 44:
24 0 -3.754125525
25 0 -0.09190415307
↑
true value= 4.669201609
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Line 74 ⟶ 77:
24 0 1.6761036199854529178
25 0 1.3068879789412108804
↑
true value= 4.6692016091029906719
</pre>
Line 107 ⟶ 110:
24 12 4.66920160910412904696305071057
25 9 4.66920160831045435278064326969
↑
true value= 4.66920160910299067185320382047
</pre>
Line 140 ⟶ 143:
24 14 4.669201609102987917842550686945063648103
25 16 4.669201609102990082109591039030679816186
↑
true value= 4.669201609102990671853203820466201617258
</pre>
Line 173 ⟶ 176:
24 14 4.6692016091029879178492459786120026677307662966576
25 16 4.6692016091029900820302890757279774163961895200742
↑
true value= 4.6692016091029906718532038204662016172581855774758
</pre>
Line 206 ⟶ 209:
24 14 4.66920160910298791784924597861351311575702672457052187681814
25 16 4.66920160910299008203028907572873571164451680641851773878632
↑
true value= 4.66920160910299067185320382046620161725818557747576863274565
</pre>
Line 237 ⟶ 240:
24 14 4.669201609102987917849245978613513115757246210043045367998209732838256
25 16 4.669201609102990082030289075728735711642616959039291006563095888962633
↑
true value= 4.669201609102990671853203820466201617258185577475768632745651343004134
</pre>
Line 270 ⟶ 273:
24 14 4.6692016091029879178492459786135131157572462100430915357209982548433093297570592
25 16 4.6692016091029900820302890757287357116426169590391741098422496772889977674631437
↑
true value= 4.6692016091029906718532038204662016172581855774757686327456513430041343302113147
</pre>
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