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Newly found equation of egg shaped curve is written in the following;
. (1) As seen in the composition of Eq.(1), this equation is regarded to be a transformation of the equation of an ellipsoid. If we calculate Eq.(1) with the use of computer, we obtain Fig.1, where we fix the value of constant as without loss of the generality. 



and the previously founded one 
in the case that a=1, b=0.72 and c=0.08 (pink colored curve) and the shape of an actual egg 


In the last, the expression of Eq.(1) in the orthogonal coordinates is led to the follows. . (3) [General expression] It is reported from Mr. Yasuyuki ASAI that the above equation is rewritten from the following general expression. . (4) If the constants in Eq.(4) is replaced as , Eq.(4) leads to Eq.(1) in this page. On the other hand, if the constants in Eq.(4) is replaced as , Eq.(4) leads to the first equation in the page of Mr. Yasuyuki ASAI and leads to Eq.(1) in our another page. In another speaking, it is recognized that the egg shaped curve in this page is the same as that in the page of Mr. SuugakuDokusyuuJuku Jukuchou and the analyses have been performed in the different ways each other. Here, we appreciate his suggestion. 
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