Is there a name to this equation: $(y - a|x|^b)^2 + (cx)^2 = d$?












1












$begingroup$


While doing a survey of the various equations that generate the universal love symbol, a heart curve, I find that many fit into this parametrised form:



$$(y - a|x|^b)^2 + (cx)^2 = d $$



Where   a b c d   are parameters.



Is there an existing name to this equation?

Or is this equation being used in some fields of mathematics or physics?

If not, I'll name it Paul Ma's Heart Equation   :-)



Examples of a heart curve for the parameters   a b c d   are:


Set   a=0.75   b=1   c=0.75   d=1


Set   a=0.6   b=(2/3)   c=0.8   d=0.9



And if you set


    a=(4/5)   b=0.5   c=(4/5)   d=(16/25)


it is identical to the equation in the math.stackexchange forum:

An equation that generates a beautiful or unique shape for motivating students in mathematics



My Heart Equation


    $(y - a|x|^b)^2 + (cx)^2 = d$


can also be used to deform the heart curve. Examples:


For boomerang: Set   a=0.5   b=1   c=0.13   d=1


For circle: Set   a=0   b=any   c=1   d=1



I have written a light hearted blog on this Heart Equation:

http://onemanadreaming.blogspot.com.au/2014/08/mathematical-equation-of-love-heart.html


where the heart curves are graphed for the above mentioned parameters.










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  • $begingroup$
    To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
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    – Vincent
    Aug 18 '14 at 16:47
















1












$begingroup$


While doing a survey of the various equations that generate the universal love symbol, a heart curve, I find that many fit into this parametrised form:



$$(y - a|x|^b)^2 + (cx)^2 = d $$



Where   a b c d   are parameters.



Is there an existing name to this equation?

Or is this equation being used in some fields of mathematics or physics?

If not, I'll name it Paul Ma's Heart Equation   :-)



Examples of a heart curve for the parameters   a b c d   are:


Set   a=0.75   b=1   c=0.75   d=1


Set   a=0.6   b=(2/3)   c=0.8   d=0.9



And if you set


    a=(4/5)   b=0.5   c=(4/5)   d=(16/25)


it is identical to the equation in the math.stackexchange forum:

An equation that generates a beautiful or unique shape for motivating students in mathematics



My Heart Equation


    $(y - a|x|^b)^2 + (cx)^2 = d$


can also be used to deform the heart curve. Examples:


For boomerang: Set   a=0.5   b=1   c=0.13   d=1


For circle: Set   a=0   b=any   c=1   d=1



I have written a light hearted blog on this Heart Equation:

http://onemanadreaming.blogspot.com.au/2014/08/mathematical-equation-of-love-heart.html


where the heart curves are graphed for the above mentioned parameters.










share|cite|improve this question











$endgroup$












  • $begingroup$
    To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
    $endgroup$
    – Vincent
    Aug 18 '14 at 16:47














1












1








1





$begingroup$


While doing a survey of the various equations that generate the universal love symbol, a heart curve, I find that many fit into this parametrised form:



$$(y - a|x|^b)^2 + (cx)^2 = d $$



Where   a b c d   are parameters.



Is there an existing name to this equation?

Or is this equation being used in some fields of mathematics or physics?

If not, I'll name it Paul Ma's Heart Equation   :-)



Examples of a heart curve for the parameters   a b c d   are:


Set   a=0.75   b=1   c=0.75   d=1


Set   a=0.6   b=(2/3)   c=0.8   d=0.9



And if you set


    a=(4/5)   b=0.5   c=(4/5)   d=(16/25)


it is identical to the equation in the math.stackexchange forum:

An equation that generates a beautiful or unique shape for motivating students in mathematics



My Heart Equation


    $(y - a|x|^b)^2 + (cx)^2 = d$


can also be used to deform the heart curve. Examples:


For boomerang: Set   a=0.5   b=1   c=0.13   d=1


For circle: Set   a=0   b=any   c=1   d=1



I have written a light hearted blog on this Heart Equation:

http://onemanadreaming.blogspot.com.au/2014/08/mathematical-equation-of-love-heart.html


where the heart curves are graphed for the above mentioned parameters.










share|cite|improve this question











$endgroup$




While doing a survey of the various equations that generate the universal love symbol, a heart curve, I find that many fit into this parametrised form:



$$(y - a|x|^b)^2 + (cx)^2 = d $$



Where   a b c d   are parameters.



Is there an existing name to this equation?

Or is this equation being used in some fields of mathematics or physics?

If not, I'll name it Paul Ma's Heart Equation   :-)



Examples of a heart curve for the parameters   a b c d   are:


Set   a=0.75   b=1   c=0.75   d=1


Set   a=0.6   b=(2/3)   c=0.8   d=0.9



And if you set


    a=(4/5)   b=0.5   c=(4/5)   d=(16/25)


it is identical to the equation in the math.stackexchange forum:

An equation that generates a beautiful or unique shape for motivating students in mathematics



My Heart Equation


    $(y - a|x|^b)^2 + (cx)^2 = d$


can also be used to deform the heart curve. Examples:


For boomerang: Set   a=0.5   b=1   c=0.13   d=1


For circle: Set   a=0   b=any   c=1   d=1



I have written a light hearted blog on this Heart Equation:

http://onemanadreaming.blogspot.com.au/2014/08/mathematical-equation-of-love-heart.html


where the heart curves are graphed for the above mentioned parameters.







soft-question graphing-functions curves






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edited Apr 13 '17 at 12:21









Community

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asked Aug 18 '14 at 16:43









PaulPaul

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  • $begingroup$
    To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
    $endgroup$
    – Vincent
    Aug 18 '14 at 16:47


















  • $begingroup$
    To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
    $endgroup$
    – Vincent
    Aug 18 '14 at 16:47
















$begingroup$
To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
$endgroup$
– Vincent
Aug 18 '14 at 16:47




$begingroup$
To help format questions check out the following link. meta.math.stackexchange.com/questions/5020/…
$endgroup$
– Vincent
Aug 18 '14 at 16:47










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there are equation $a^2 (abs(x)-y)^2 + b^2 (abs(x)+y)^2 = 2(ab)^2$
its make love symbol



if ratio $abs(a/b)>1$ :its make the heart



if ratio $abs(a/b)$ too lagre : its make the boomerang



if ratio $abs(a/b) =1$ : its circle



if ratio $abs(a/b) < 1$ : making it upside down



where $a,b$ is in equation $x^2/a^2+y^2/b^2 =1$






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    $begingroup$

    there are equation $a^2 (abs(x)-y)^2 + b^2 (abs(x)+y)^2 = 2(ab)^2$
    its make love symbol



    if ratio $abs(a/b)>1$ :its make the heart



    if ratio $abs(a/b)$ too lagre : its make the boomerang



    if ratio $abs(a/b) =1$ : its circle



    if ratio $abs(a/b) < 1$ : making it upside down



    where $a,b$ is in equation $x^2/a^2+y^2/b^2 =1$






    share|cite|improve this answer











    $endgroup$


















      -1












      $begingroup$

      there are equation $a^2 (abs(x)-y)^2 + b^2 (abs(x)+y)^2 = 2(ab)^2$
      its make love symbol



      if ratio $abs(a/b)>1$ :its make the heart



      if ratio $abs(a/b)$ too lagre : its make the boomerang



      if ratio $abs(a/b) =1$ : its circle



      if ratio $abs(a/b) < 1$ : making it upside down



      where $a,b$ is in equation $x^2/a^2+y^2/b^2 =1$






      share|cite|improve this answer











      $endgroup$
















        -1












        -1








        -1





        $begingroup$

        there are equation $a^2 (abs(x)-y)^2 + b^2 (abs(x)+y)^2 = 2(ab)^2$
        its make love symbol



        if ratio $abs(a/b)>1$ :its make the heart



        if ratio $abs(a/b)$ too lagre : its make the boomerang



        if ratio $abs(a/b) =1$ : its circle



        if ratio $abs(a/b) < 1$ : making it upside down



        where $a,b$ is in equation $x^2/a^2+y^2/b^2 =1$






        share|cite|improve this answer











        $endgroup$



        there are equation $a^2 (abs(x)-y)^2 + b^2 (abs(x)+y)^2 = 2(ab)^2$
        its make love symbol



        if ratio $abs(a/b)>1$ :its make the heart



        if ratio $abs(a/b)$ too lagre : its make the boomerang



        if ratio $abs(a/b) =1$ : its circle



        if ratio $abs(a/b) < 1$ : making it upside down



        where $a,b$ is in equation $x^2/a^2+y^2/b^2 =1$







        share|cite|improve this answer














        share|cite|improve this answer



        share|cite|improve this answer








        edited Jan 10 at 16:49









        Armando j18eos

        2,63511328




        2,63511328










        answered Jan 10 at 16:25









        vLinh dhvLinh dh

        1




        1






























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