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visits member for 2 years, 6 months
seen Nov 29 at 22:30

High School ==> Uni Student


Sep
24
awarded  Autobiographer
Jul
28
comment Solving weak 2 body problem
Thank you. It's a good solution. With Semiclassical's substitution it works well.
Jul
28
accepted Solving weak 2 body problem
Jul
23
awarded  Critic
Jul
22
revised Solving weak 2 body problem
added 60 characters in body
Jul
22
comment Solving weak 2 body problem
Another point is I can try to solve the final differential equation by direct integration. But it seems ugly and I'm looking for a nicer way.
Jul
22
comment Solving weak 2 body problem
Thank you very much for checking the calculations! The most problematic thing here is manipulating higher order derivatives and for this reason I couldn't understand that $dx$ is wrong, $dt$ is correct. Sorry doing mess writing the solution, now I fix it.
Jul
22
asked Solving weak 2 body problem
Jul
2
awarded  Curious
Sep
3
awarded  Commentator
Sep
3
accepted Is $y' + ay^4 + b = 0$ elementary?
Sep
3
comment Is $y' + ay^4 + b = 0$ elementary?
This idea works. As hjpotter92 wrote I get an easy form to integrate.
Sep
3
asked Is $y' + ay^4 + b = 0$ elementary?
Jul
10
comment Solving transcendental equation involving exponential functions
Try this: en.wikipedia.org/wiki/Lambert_W_function#Example_1, maybe what you are looking for.
May
26
awarded  Informed
May
24
comment Is every prime number less than twice the previous prime number?
No, 2 is prime, 3 is prime, but 3 is less than 2*2
Mar
26
comment What function has derivative $\log(x)$?
Integration by parts, there are some examples
Dec
26
awarded  Teacher
Dec
26
revised product of two distinct squares
better expained pat
Dec
26
comment product of two distinct squares
yes, you also has to check if squared number is a prime number: 49 = 7*7 (7 is a prime number), so you will get only 7*7 or 1*49