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Henry Lee
  • Member for 4 years, 3 months
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11 votes
2 answers
390 views

Integral involving $\tan(\ln(x))$

8 votes
5 answers
405 views

How to integrate $\int_0^1\frac{dx}{1+x+x^2+\cdots+x^n}$

6 votes
1 answer
211 views

inverse function of $f(x)=x^{x^x}$

6 votes
3 answers
709 views

Proof of $\int_{0}^{\pi}\cos^n(x)\cos(nx)dx=\frac{\pi}{2^n}$

5 votes
0 answers
280 views

$\int_2^4\frac{\sqrt{\ln(9-(6-x))}}{\sqrt{\ln(9-x)}+\sqrt{\ln(3+x)}}dx$ (Now solved) [closed]

5 votes
4 answers
1k views

$\int{\cos(x)\cosh(x)+\sin(x)\sinh(x)}dx$

4 votes
4 answers
183 views

$\int_0^{\pi/2}\frac{1}{1+\tan^{n}x}dx$

4 votes
2 answers
441 views

$\int_0^\frac{\pi}{2}\frac{\ln(\sin(x))\ln(\cos(x))}{\tan(x)}dx$

4 votes
0 answers
86 views

$\int_{-\infty}^{\infty} (x+1)(x-1)e^{-(x+1)^2(x-1)^2}$

4 votes
2 answers
984 views

Evaluating limits of nested functions

4 votes
3 answers
227 views

solution to a general integral $\int_0^\infty \frac{\cos(tx)}{x^2+k^2}e^{-sx}dx$

4 votes
2 answers
79 views

finding bounds for $\int_0^X\lfloor x^2\rfloor \, dx$

4 votes
2 answers
794 views

Fourier transform of piecewise function

3 votes
1 answer
73 views

Fourier sine transform problem

3 votes
1 answer
94 views

Finding specific values of $\ln(x)$

3 votes
5 answers
438 views

Power tower of $10$

3 votes
1 answer
500 views

Evaluating $\int\sqrt{1+\sin x}dx$. [duplicate]

2 votes
1 answer
410 views

Inverse of $x^x$ using Lambert W function

2 votes
1 answer
52 views

Proof of complex integrals involving trigonometic functions

2 votes
1 answer
94 views

$\int\frac{\sin(x)}{\arcsin(-x)}dx$

2 votes
1 answer
73 views

integral of fractional part $\int_0^1\left\{\frac 1x\right\}dx$ convergent?

2 votes
0 answers
91 views

Higher dimensions of the gauss integral to calculate product of determinate integral of sines

2 votes
1 answer
28 views

Writing this concatenating decimal as a series/fraction

2 votes
0 answers
17 views

Defining boundary conditions clearly

1 vote
1 answer
59 views

Best notation for partial derivatives [closed]

1 vote
1 answer
356 views

natural logarithm of a complex number $\ln(a+bi)$

1 vote
1 answer
30 views

trace of a 2x2 matrix with itself transposed $\operatorname{tr}(uu^T)=\sum a_{ij}^2$

1 vote
2 answers
67 views

Why is $\det(J)$ used when changing coordinates from (x,y) to (u,v)

1 vote
4 answers
55 views

$\lim_{|z|\to\infty}e^{-z}$

1 vote
2 answers
191 views

divergent vs undefined integrals/summations