User Jan Eerland - Mathematics Stack Exchange

8 votes

2 answers

163 views

Proving that a list of perfect square numbers is complete

asked Dec 4, 2019 at 20:11

7 votes

2 answers

153 views

Are results found of an Elliptic Curve by SageMathCell proven (does there exists no more solutions)?

asked Jan 19, 2020 at 14:25

6 votes

2 answers

4k views

Understanding the Bromwich Integral (Inverse Laplace Transform)

asked Sep 11, 2015 at 19:45

4 votes

1 answer

102 views

Closed form for this $\text{I}(u)=\int_u^\infty\frac{\sqrt{x}}{x^2-2x+2}\space\text{d}x$ integral? (spot my mistake)

asked Aug 14, 2016 at 9:51

3 votes

2 answers

133 views

$\int_{a}^{b}\left(\frac{\cos(x)\tan^{\pi}(x)}{\sin^3(x)}\right)dx$

asked Aug 5, 2015 at 13:28

3 votes

1 answer

98 views

Closed form for this $\text{I}=\int_{1}^{\infty}\frac{1}{\pi^{nx}-1}\space\text{d}x$ integral? (spot my mistake)

asked Dec 23, 2015 at 20:43

3 votes

2 answers

123 views

Studying this sum: $\sum_{k=0}^{\infty} (k+1)(x)^k$

asked Jul 1, 2015 at 9:46

2 votes

2 answers

292 views

Find a function $f(x)$ in an integral

asked Jul 14, 2015 at 17:32

2 votes

2 answers

330 views

Complex infinity ($1/0$) [duplicate]

asked Apr 18, 2015 at 17:07

2 votes

1 answer

43 views

Limit in an integral involving a DE

asked Oct 25, 2017 at 13:15

2 votes

1 answer

105 views

Find the maximum and minimum of a function (involving an trigonometric integral)

asked Mar 8, 2017 at 16:00

2 votes

1 answer

91 views

Finding integral-points on elliptic curves

asked Dec 3, 2019 at 16:55

2 votes

2 answers

142 views

Finding shortcuts in solving Diophantine equation

asked Dec 31, 2019 at 16:01

2 votes

1 answer

69 views

Finding a difficult inverse Laplacetransform

asked Mar 17, 2019 at 19:50

2 votes

2 answers

108 views

Prove the fact that two integrals are equal

asked Jan 23, 2018 at 18:00

2 votes

1 answer

89 views

Solving a difficult differential equation

asked Jan 17, 2019 at 17:38

2 votes

1 answer

83 views

Solving a sum of a function and the function $\sum_{k=1}^\text{n}f(k)=f(m)\space\Longleftrightarrow\space m=\dots$

asked Jan 13, 2020 at 20:48

1 vote

2 answers

226 views

Solving a physical problem involving electric circuits

asked Feb 9, 2019 at 14:37

1 vote

2 answers

45 views

Find x, where $x^\text{n}\equiv\text{m}\space\left(\text{mod}\space\text{p}_1\cdot\text{p}_2\right)$

asked Oct 20, 2019 at 17:48

1 vote

1 answer

94 views

Proving that an $\int_{-\infty}^\infty\int_k^{k+1}\sin(\exp(x))dxdk$ integral converges

asked Jan 4, 2020 at 18:56

1 vote

1 answer

137 views

Mathematical shortcut to determine if a number is a integer

asked Jan 10, 2020 at 15:45

1 vote

1 answer

162 views

Proving a statement about perfect squares

asked Dec 25, 2019 at 13:43

1 vote

1 answer

118 views

Using Taylor series to find an integral over a particular range

asked Mar 9, 2017 at 17:22

1 vote

1 answer

68 views

Solving an equality for a variable (involving trigonometry)

asked Mar 12, 2017 at 13:45

1 vote

1 answer

81 views

Problem with finding the maximum value of a function

asked Mar 19, 2017 at 17:27

1 vote

1 answer

71 views

Choose the optimal frequency in a electrical circuit

asked Apr 18, 2017 at 16:00

1 vote

1 answer

60 views

Equation with integrals and absolute complex log function problem (physics related)

asked Apr 23, 2017 at 14:29

1 vote

1 answer

54 views

Proving that a double integral converges

asked Jan 16, 2018 at 11:17

1 vote

1 answer

82 views

Change the order of integration involving Fresnel integrals

asked Jan 19, 2018 at 9:07

1 vote

1 answer

49 views

Solving a physics related DE

asked May 21, 2017 at 9:48

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56 Questions

Proving that a list of perfect square numbers is complete

Are results found of an Elliptic Curve by SageMathCell proven (does there exists no more solutions)?

Understanding the Bromwich Integral (Inverse Laplace Transform)

Closed form for this $\text{I}(u)=\int_u^\infty\frac{\sqrt{x}}{x^2-2x+2}\space\text{d}x$ integral? (spot my mistake)

$\int_{a}^{b}\left(\frac{\cos(x)\tan^{\pi}(x)}{\sin^3(x)}\right)dx$

Closed form for this $\text{I}=\int_{1}^{\infty}\frac{1}{\pi^{nx}-1}\space\text{d}x$ integral? (spot my mistake)

Studying this sum: $\sum_{k=0}^{\infty} (k+1)(x)^k$

Find a function $f(x)$ in an integral

Complex infinity ($1/0$) [duplicate]

Limit in an integral involving a DE

Find the maximum and minimum of a function (involving an trigonometric integral)

Finding integral-points on elliptic curves

Finding shortcuts in solving Diophantine equation

Finding a difficult inverse Laplacetransform

Prove the fact that two integrals are equal

Solving a difficult differential equation

Solving a sum of a function and the function $\sum_{k=1}^\text{n}f(k)=f(m)\space\Longleftrightarrow\space m=\dots$

Solving a physical problem involving electric circuits

Find x, where $x^\text{n}\equiv\text{m}\space\left(\text{mod}\space\text{p}_1\cdot\text{p}_2\right)$

Proving that an $\int_{-\infty}^\infty\int_k^{k+1}\sin(\exp(x))dxdk$ integral converges

Mathematical shortcut to determine if a number is a integer

Proving a statement about perfect squares

Using Taylor series to find an integral over a particular range

Solving an equality for a variable (involving trigonometry)

Problem with finding the maximum value of a function

Choose the optimal frequency in a electrical circuit

Equation with integrals and absolute complex log function problem (physics related)

Proving that a double integral converges

Change the order of integration involving Fresnel integrals

Solving a physics related DE