This discussion is now closed.
Check out other Related discussions
- Recommended supercurriculars for computer science at top Russel group universities
- EM Modulation
- Options and goals for postgraduate study
- Imperial Geophysics Modules Insights
- Isaac Physics question C4a.4 essential pre uni physics. Please help.
- Maclaurin series
- Use of Maclaurin series for single maths
- advice for graduate studies preparation
- A-Level Maths: Series
- Infinite series
- MAT Prep
- maths question binomial series
- How do I know which paper I'm doing?
- Favourite books
- Space Missions and Lagrangian Points
- History coursework HELP
- Best Action Film?
- i need a friends who likes the "a court of thorns and roses series"
- A level psychology help
- Advice for Beginner's Arabic???
Fourier Series finding An term
15
Hi,
Here is my working for finding A_n given knowledge that the sum is equal to a constant, l is a constant so the sinh(nl) part is just constant, my answer is mostly correct except it is 2 rather than 4 but I’ve gone over it so much and can’t find where the 4 comes from? Maybe where I am integrating but I’ve triple checked
It might seem stupid to ask about a mistake but small mistakes like this might be me actually misunderstandings part of the process
Here is my working for finding A_n given knowledge that the sum is equal to a constant, l is a constant so the sinh(nl) part is just constant, my answer is mostly correct except it is 2 rather than 4 but I’ve gone over it so much and can’t find where the 4 comes from? Maybe where I am integrating but I’ve triple checked
It might seem stupid to ask about a mistake but small mistakes like this might be me actually misunderstandings part of the process
Reply 1
21
Do you have the original question?
Reply 2
grhas98
OP
15
Original post by mqb2766
Do you have the original question?
This is the original question, but I am just worried about the last boundary condition phi(x,l)= phi_0
Reply 3
grhas98
OP
15
Original post by mqb2766
Do you have the original question?
Sorry I meant to send this
Reply 4
grhas98
OP
15
Original post by mqb2766
Do you have the original question?
Actually never mind, I believe the problem is that x > 0 in the question but I am integrating over [pi, -pi]
Reply 5
21
Original post by grhas98
This is the original question, but I am just worried about the last boundary condition phi(x,l)= phi_0
Original post by grhas98
Sorry I meant to send th
Original post by grhas98
Actually never mind, I believe the problem is that x > 0 in the question but I am integrating over [pi, -pi]
Sounds reasonable, but not checked.
Reply 6
21
Original post by grhas98
Actually never mind, I believe the problem is that x > 0 in the question but I am integrating over [pi, -pi]
Also the lhs looked like it was 0 not 2 when its was -pi .. pi.
Reply 7
grhas98
OP
15
Original post by mqb2766
Sounds reasonable, but not checked.
Oh yeah, ty
Related discussions
- Recommended supercurriculars for computer science at top Russel group universities
- EM Modulation
- Options and goals for postgraduate study
- Imperial Geophysics Modules Insights
- Isaac Physics question C4a.4 essential pre uni physics. Please help.
- Maclaurin series
- Use of Maclaurin series for single maths
- advice for graduate studies preparation
- A-Level Maths: Series
- Infinite series
- MAT Prep
- maths question binomial series
- How do I know which paper I'm doing?
- Favourite books
- Space Missions and Lagrangian Points
- History coursework HELP
- Best Action Film?
- i need a friends who likes the "a court of thorns and roses series"
- A level psychology help
- Advice for Beginner's Arabic???
Latest
Trending
Last reply 2 days ago
Edexcel AS Level Maths May 15th 2025 Pure Paper 1 + Unofficial Mark SchemeMaths Study Help
53
152
Last reply 1 month ago
Further mechanics 2 options overlapping with physics rather than stats?
