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seen Jul 21 at 11:32

Jul
21
comment Using integral definition to solve this integral
For every partition P there is a partition P' where P' has fixed delta equal to the smallest $t_i - t_{i-1}$ in P. Since the function is decreasing, s(f; P) < s(f; P'), and so $$\sup_P s(f;P) \le \sup_{P'} s(f;P')$$ But P' is just a (specialised) partition, so $$\sup_{P'} s(f;P) \le \sup_{P} s(f;P)$$ So $$\sup_P s(f;P) = \sup_{P'} s(f;P')$$ and from there you can use Mhenni Benghorbal
Jul
15
comment Probability of x pocket pairs at a table of n people (NLHE)?
Can you give an example of an easy way?
Jul
11
comment Probabilty with profit question.
It depends what you mean by "profitable". Average or expected profit is the sum of (probability * profit) e.g. for first table 1/3 * 350 + 1/6 * 350 - 1/6 * 100 - 1/3 * 100. Maximum profit is just 350 for the first table etc
Jul
11
comment How do you find the equation of this straight line?
And note that you can get $b$ in terms of $a$
Jul
11
comment How do you find the equation of this straight line?
Use implicit differentiation to get m = dy/dx. Then (for tangent) find line with slope m, passing through whatever point you've been given. For normal, find line with slope -1/m passing through the point.
Jul
10
awarded  Scholar
Jul
10
accepted Probablity that 3 husbands sit next to their wives round a circular table
Jul
10
awarded  Student
Jul
10
comment Probablity that 3 husbands sit next to their wives round a circular table
@ScottCaldwell Thank you
Jul
10
asked Probablity that 3 husbands sit next to their wives round a circular table
Mar
10
comment Monty Hall Problem Extended Using Bayes's Theory
How do you apply Bayes theorem with 3 doors?
Mar
7
comment Is there a function that can scale a summation to a specific range.
Why should combined scores be 80, 85? Why not 70, 70?
Mar
7
comment how to build a function that holds some condition
Also any sum of suitable functions. So for instance $f_1(x)=c, f_2(x)=x^2, f_3(x)=exp(x)$ will all work, and so will, say $f_4(x) = c + x^2 + exp(x)$.
Mar
7
answered how to build a function that holds some condition
Mar
6
comment Moving segments colliding
Even so it's a helpful answer!
Mar
6
comment Moving segments colliding
How do you check if two coplanar segments intersect?
Mar
6
answered How to draw the Curve for this Normal Distribution
Mar
5
comment Mathematical interpretation of pressure (gradient)
Just looking at units, $\nabla P$ divides the units of P by a unit of distance. In terms of units, $V$ = unit of distance * units of area. So I don't think an area would be allowed for $V$ as the units wouldn't match.
Mar
3
comment I found this odd relationship, $x^2 = \sum_{k = 0}^{x-1} (2k + 1)$.
?Not true try with x=0. LHS = 0. RHS = 1.
Mar
3
answered How to show that this sequence is monotonic