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2h
revised Proving the hat functions are linearly independent
added 22 characters in body
2h
revised positive double integrals
added 8 characters in body
2h
revised Finding general solution of p(D)x
added 1 character in body
2h
revised Given $f\in L^1(\mathbb{R})$ with $\|f\|_1<\infty$ and $g_n=\sqrt{n/2\pi}e^{-nx^2/2},f_n=g_n\ast f$, show that $\lim\|f_n-f\|_1=0$
deleted 1 character in body; edited title
2h
revised Why is $\frac{d^m}{d(-x)^m}=(-1)^m \frac{d^m}{dx^m}$
added 2 characters in body
2h
revised Showing that $\int fg\le \int g$ implies $f=0$ a.e.
deleted 1 character in body
5h
revised Fuchs type equation
added 4 characters in body
5h
revised Integration over ellipse
added 18 characters in body
5h
revised UMVUE of $ \frac{1}{\theta} $ coming from $ f(x) = \theta x^{\theta - 1} $.
added 8 characters in body
5h
revised Integration over ellipse
added 15 characters in body
5h
revised Evaluate $∫_C(4y^3+\cos x^2 )\,dx-(4x^3+\sin y^2)\,dy$ where $C$ is the boundary of the disk centered at the origin of radius $2$, oriented clockwise.
added 4 characters in body; edited title
8h
comment Integral of trig fraction using substitution?
. . . and I took the liberty of correcting $u/(u^2+1)$ to say $2u/(u^2+1)$. ${}\qquad{}$
8h
revised Integral of trig fraction using substitution?
deleted 5 characters in body
8h
comment Integral of trig fraction using substitution?
. . . and $\dfrac{2\,du}{1+u^2} = dx$. ${}\qquad{}$
9h
comment Prove that $g\in \ker \varphi$
I changed $< a,b \,|\, b^{-1}a^3b = a^5 >$ to $\langle a,b \mid b^{-1}a^3b = a^5 \rangle$, with proper use of \langle, \rangle, and \mid.
9h
revised Prove that $g\in \ker \varphi$
added 5 characters in body
9h
comment Impulse function and the laplace transform
OK, I've changed it. The asterisk for multiplication is a workaround for occasions when one must work only with the characters on the keyboard. In MathJax, LaTeX, etc., one can write $2\cdot5$ or $2\times 5$, etc. ${}\qquad{}$
9h
revised Impulse function and the laplace transform
added 5 characters in body
9h
comment Impulse function and the laplace transform
Does the asterisk denote convolution? ${}\qquad{}$
9h
revised Impulse function and the laplace transform
added 13 characters in body