Read More
Date: 21-5-2019
1868
Date: 12-10-2018
1709
Date: 15-10-2019
1440
|
The catacaustic of the natural logarithm specified parametrically as
(1) |
|||
(2) |
is a complicated expression for an arbitrary radiant point.
However, for a point , the catacaustic becomes
(3) |
|||
(4) |
Making the substitution then gives the equivalent parametrization
(5) |
|||
(6) |
which is the equation of a catenary.
REFERENCES:
Lawrence, J. D. A Catalog of Special Plane Curves. New York: Dover, p. 207, 1972.
|
|
دراسة تحدد أفضل 4 وجبات صحية.. وأخطرها
|
|
|
|
|
جامعة الكفيل تحتفي بذكرى ولادة الإمام محمد الجواد (عليه السلام)
|
|
|