looking for equation to a specific spiral incrementing by a specific rate












0












$begingroup$


what would be the equation to a spiral which increments by the sum of the previous increment and the increment?



thus the turn gaps would be 0.1 0.2 0.4 0.8 1.6 3.2 6.5 13 26 52 104



what I have is
r = 0.3 * theta^2 -1 + 30 * theta



but it doesent seem precisely what I am looking for










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migrated from mathematica.stackexchange.com Jan 5 at 8:01


This question came from our site for users of Wolfram Mathematica.











  • 1




    $begingroup$
    >" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
    $endgroup$
    – JJacquelin
    Jan 5 at 8:22












  • $begingroup$
    I dont believe what I have follows the guideline
    $endgroup$
    – user33915
    Jan 5 at 10:19
















0












$begingroup$


what would be the equation to a spiral which increments by the sum of the previous increment and the increment?



thus the turn gaps would be 0.1 0.2 0.4 0.8 1.6 3.2 6.5 13 26 52 104



what I have is
r = 0.3 * theta^2 -1 + 30 * theta



but it doesent seem precisely what I am looking for










share|cite|improve this question









$endgroup$



migrated from mathematica.stackexchange.com Jan 5 at 8:01


This question came from our site for users of Wolfram Mathematica.











  • 1




    $begingroup$
    >" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
    $endgroup$
    – JJacquelin
    Jan 5 at 8:22












  • $begingroup$
    I dont believe what I have follows the guideline
    $endgroup$
    – user33915
    Jan 5 at 10:19














0












0








0





$begingroup$


what would be the equation to a spiral which increments by the sum of the previous increment and the increment?



thus the turn gaps would be 0.1 0.2 0.4 0.8 1.6 3.2 6.5 13 26 52 104



what I have is
r = 0.3 * theta^2 -1 + 30 * theta



but it doesent seem precisely what I am looking for










share|cite|improve this question









$endgroup$




what would be the equation to a spiral which increments by the sum of the previous increment and the increment?



thus the turn gaps would be 0.1 0.2 0.4 0.8 1.6 3.2 6.5 13 26 52 104



what I have is
r = 0.3 * theta^2 -1 + 30 * theta



but it doesent seem precisely what I am looking for







graphing-functions






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Jan 5 at 7:13









user33915user33915

11




11




migrated from mathematica.stackexchange.com Jan 5 at 8:01


This question came from our site for users of Wolfram Mathematica.






migrated from mathematica.stackexchange.com Jan 5 at 8:01


This question came from our site for users of Wolfram Mathematica.










  • 1




    $begingroup$
    >" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
    $endgroup$
    – JJacquelin
    Jan 5 at 8:22












  • $begingroup$
    I dont believe what I have follows the guideline
    $endgroup$
    – user33915
    Jan 5 at 10:19














  • 1




    $begingroup$
    >" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
    $endgroup$
    – JJacquelin
    Jan 5 at 8:22












  • $begingroup$
    I dont believe what I have follows the guideline
    $endgroup$
    – user33915
    Jan 5 at 10:19








1




1




$begingroup$
>" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
$endgroup$
– JJacquelin
Jan 5 at 8:22






$begingroup$
>" but it doesent seem precisely what I am looking for.". Then, what are you precisely looking for ?
$endgroup$
– JJacquelin
Jan 5 at 8:22














$begingroup$
I dont believe what I have follows the guideline
$endgroup$
– user33915
Jan 5 at 10:19




$begingroup$
I dont believe what I have follows the guideline
$endgroup$
– user33915
Jan 5 at 10:19










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