Item:Q6437: Difference between revisions

@@ Property / subclass of @@
+closed curve
@@ Property / subclass of: closed curve / rank @@
+Normal rank
@@ Property / defining formula @@
+ $p_{1}r_{1}+p_{2}r_{2}=const$ 
p_1r_1+p_2r_2=const
@@ Property / defining formula: $p_{1}r_{1}+p_{2}r_{2}=const$ / rank @@
+Normal rank
@@ Property / defining formula @@
+ $(x^{2}+y^{2}-2ax)^{2}=b^{2}(x^{2}+y^{2})+c$ 
(x^2 + y^2 - 2ax)^2 = b^2(x^2 + y^2) + c
+Normal rank