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JPhy's user avatar
JPhy's user avatar
JPhy
  • Member for 10 years, 3 months
  • Last seen this week
  • United Kingdom
14 votes

How to calculate average of sine squared

10 votes
Accepted

Greens function of Laplace operator

8 votes
Accepted

Third-order Linear Parabolic PDE

6 votes

Why $A\sin(2\pi ft) =\frac{A}{2j}(e^{j2\pi ft}-e^{-j2\pi ft})$ but not $\frac{A}{2}(e^{j2\pi ft}-e^{-j2\pi ft})$?

3 votes

Intrinsic and Extrinsic curvature

2 votes
Accepted

how to solve an equation of the form $\displaystyle \frac{x^n}{1-x}=c$

1 vote
Accepted

What does C mean when talking about range of functions?

1 vote

Differentiating a function of a variable with respect to the variable's derivative

1 vote

Computing Normals from Metric Tensor

1 vote
Accepted

Computing for $\theta$ component of the geodesic equation

1 vote

integral on the surface of a sphere

0 votes

Find the volume of this improper integral?

0 votes
Accepted

What's the difference between $( A \cdot \nabla ) B$ and $B ( \nabla \cdot A )$?

0 votes
Accepted

Pull-back of differential forms

0 votes

Limit with exponential function

0 votes

Evaluate the Integral with 2 Paths

0 votes
Accepted

Whats the intergral of xe^-y dy dx with 0 and 1 as limits

0 votes
Accepted

jacobian times its inverse - should be identity

0 votes

I have the pattern: 1 + 2 + 3 + 4 + 5 + 6, but I need the formula for it

0 votes

how to calculate $q$-expansion coefficients of a modular form?