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May
21
awarded  Announcer
Jan
14
awarded  Yearling
Jan
11
comment Circle intersection in radial coordinates?
@leo: I specifically need the $\theta$ for the application. But actually you are right - I could solve in rectangular coordinates and then calculate theta after having the two points (x,y) coordinates.
Jan
11
answered Circle intersection in radial coordinates?
Jan
11
comment Circle intersection in radial coordinates?
@Clayton: Then they would not qualify as their interiors would be disjoint. See second sentence of post.
Jan
11
revised Circle intersection in radial coordinates?
added 13 characters in body
Jan
11
asked Circle intersection in radial coordinates?
Jan
11
accepted Two circles overlap?
Jan
11
comment Two circles overlap?
Yes, it seems obvious now. Thank you.
Jan
11
asked Two circles overlap?
Nov
9
asked Notation for elementwise matrix binary operations?
Nov
8
comment Derivative of $x \over x+k$?
For some embarassing reason I can't explain I thought that because the numerator and denominator shares the $a$ term the Quotient Rule didn't apply. Sorry.
Nov
7
accepted Derivative of $x \over x+k$?
Nov
7
asked Derivative of $x \over x+k$?
Oct
28
accepted Generously Feasible?
Oct
26
comment How is $dx \over dy$ different from $\partial x \over \partial y$?
math.stackexchange.com/questions/221755/…
Oct
26
revised Geometric Interpretation of Total Derivative?
edited title
Oct
26
asked Geometric Interpretation of Total Derivative?
Oct
26
comment How is $dx \over dy$ different from $\partial x \over \partial y$?
Now I am really confused. If we plot in 3D a surface $x=z_1z_2$, then at a given point on the surface the tangent in the $z_1$ direction will correspond to the partial derivative $\partial x \over \partial z_1$. Does the total derivative have a similiar geometric interpretation?
Oct
26
comment How is $dx \over dy$ different from $\partial x \over \partial y$?
But for all mechanical purposes all the same rules apply in both cases? We are asking how the "numerator" variable varies with respect to the "denomiator" variable, assuming everything else is held constant.