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i love you're page,but can you add some curves of second order..thanks.
thanks
goog very helpful
Many thanks for the point to a line distance calculator!
You have realy help me
As long as you do the math for the angle between planes, you might as well show the equation for the line, or a point on the line.
Thankyou. I teach calculus and just found your site. It is super time consuming so that I don't have to manually check 25 different solutions!
Sites awesome great help thanks
3+5+8
Hello,
I am currently teaching geometry at the University of Liège, Belgium. I found your site when I was looking for a standard notation for the angle of two vectors. Your formula for the angle is correct. However, maybe you should mention that it holds for nonzero vectors and adapt the calculation accordingly. For the vectors (0,0,0) and (1,2,3), it returns the value 0, although the angle is not defined. Best regards, P. Mathonet 

