7,697 reputation
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bio website linkedin.com/in/gt6989b
location New York, NY
age 35
visits member for 3 years
seen Sep 8 at 20:22

Mar
26
revised Mixed integration problem
added 22 characters in body
Mar
26
comment How do I do Linearization at a point that lies on a curve?
@Cozen $a=1$, so when all is done you get a linear function of $x$, hence the name linearization.
Mar
26
answered Number of ways to colour a square with n colours
Mar
26
answered How do I do Linearization at a point that lies on a curve?
Mar
26
answered Double integral of $e^{x^2+y^2}dydx$?
Mar
26
revised Double integral of $e^{x^2+y^2}dydx$?
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Mar
26
comment Double integral of $e^{x^2+y^2}dydx$?
Do you know about polar coordinates? Do you know about the Normal distribution? In what context are you asking this question, for which class is this the homework for?
Mar
26
reviewed Approve suggested edit on Double integral of $e^{x^2+y^2}dydx$?
Mar
26
revised Prove $F_{n+2} \ge x^n$ by induction where $x = (1 + \sqrt{5})/2$
added 22 characters in body; edited title
Mar
26
comment Degeneracy number of a ring graph
@triomphe Yes, exactly.
Mar
26
comment What kind of a mean value is this?
@user3085931 That it is an average means that some actual values could (and likely will) be higher and some could (and likely will) be lower. Average must be in the middle, so it cannot be some will match exactly and others will be all higher or all lower. You should have a mix.
Mar
26
comment What kind of a mean value is this?
@user3085931 I am not familiar with your process's terms, but if I had to explain to someone in English what that quantity was, this is the term I would use.
Mar
26
comment Understanding Integral
Generally, $\int dF(x) = \int F'(x) dx$ which is sometimes written as $\int f(x) dx$ where $f(x) = F'(x)$. But I've never seen $\int dF(x) = \int F(x)dx$.
Mar
26
answered What kind of a mean value is this?
Mar
26
revised What kind of a mean value is this?
deleted 2 characters in body; edited tags
Mar
26
comment How to show a subset doesn't span a space?
This is an example of something on the span of the first set that is not on the span of the second set. Thus, the second span must be included in the first but the first is larger
Mar
26
answered love in an elevator
Mar
26
comment Find a change in variable that will reduce the quadratic form to a sum of squares
after you are done with arithmetic you end up with $(...)^2 + (***)^2$ so change variables to have $a = ...$ and $b = ***$ and you get $a^2 + b^2$
Mar
26
answered How to show a subset doesn't span a space?
Mar
26
comment Find a change in variable that will reduce the quadratic form to a sum of squares
Yes, rename $\left(x_1,x_2,x_3\right) \to (x,y,z)$ for convenience, then add and subtract $y^2$ and then factor out the $-$ in front of the $y,z$ terms.