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Jan
10
reviewed Looks OK Hausdorff Lindelöf space and separability
Jan
10
reviewed No Action Needed How to generate random points on a sphere
Jan
10
comment Trigo function integral
@Dr.SonnhardGraubner But you have a sum of integrals, which is actually computable by elementary functions (see David Quinn's first comment). Integrate one by parts, and the other will simplify.
Jan
10
comment Trigo function integral
@Dr.SonnhardGraubner That's not the question.
Jan
5
comment How to Trace a Real-Life Flower Using Polar Equations?
"I am allowed"? Competition, exam? And you expect somebody will do your homework?
Dec
27
comment Is the absolute value of zero positive or negative?
And to add to the ambiguity, the usual meaning of "positive" alone is not the same in every country. In France, you usually say positive for $\geq0$ and strictly positive for $>0$. In anglo-saxon countries, I believe positive is $>0$ and $\geq0$ is non-negative. The best is to always be explicit. For $\geq$, it's also frequent to see "positive or null", at least in France.
Dec
27
revised Order of the error for the Trapezoidal and Simpson's method of numerical integration
deleted 1 character in body; edited title
Dec
25
revised Geometric derivation of the quadratic equation
adding conic tag since a quadratic defines a parabola in the plane
Dec
25
revised Measure theory for self study.
added 1 character in body
Dec
25
answered Measure theory for self study.
Dec
25
revised On a recursive sequence exercise.
added 3 characters in body
Dec
25
revised On a recursive sequence exercise.
added 3 characters in body
Dec
25
revised On a recursive sequence exercise.
added 3 characters in body
Dec
24
revised On a recursive sequence exercise.
added 4 characters in body
Dec
24
revised A question on Axiom XI of Veblen's paper on the axioms of geometry
better to point on the page, to get the full reference before downloading
Dec
24
revised On a recursive sequence exercise.
added 59 characters in body
Dec
24
answered On a recursive sequence exercise.
Dec
24
comment Adding $\cos \theta$ and $\sin \theta$ of Perpendicular Vectors
You don't need to, but it may be a bit simpler. To make $v_x$ appear, develop the matrix product, and put apart the $\cos \theta$ coefficients (you will get $v_\perp$), and the $\sin\theta$ ones (show it's $v_x$).
Dec
24
revised Partitions of the odd integers
edited title
Dec
24
revised $\sec\theta+\tan\theta=p$ and $\sec\theta\tan\theta=q$. Eliminate $\theta$ to form a equation between $p$ and $q$.
added 3 characters in body; edited title