Timeline for 2 point BVP solver: how to compute errors
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Mar 22, 2021 at 18:51 | comment | added | k.dkhk | Not Yet. But I will be looking at it again tomorrow this time. I will be happy to let you know how it goes. | |
| Mar 22, 2021 at 18:45 | comment | added | VoB | @k.dkhk Did you manage to solve the task? | |
| Mar 22, 2021 at 16:04 | comment | added | VoB |
Let's say that your reference solution, u_ref has been computed with m_ref points. Now assume that you're inside the loop over m_range, and you computed a solution u with m points. To compute the infty norm of the error, you can do norm(u-u_ref(1:(m_ref-1)/(m-1):m_ref),inf) What happens is that you're comparing the solutions at the correct points. @k.dkhk
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| Mar 22, 2021 at 15:21 | comment | added | k.dkhk | Thank you very much! But how exactly do I find a an error. Lets say I compare $h^{-1}$ with $h^{-9}$. Do I find a certain point in $x^*$ that they both share take the difference or what else? | |
| Mar 22, 2021 at 11:09 | vote | accept | k.dkhk | ||
| Mar 22, 2021 at 10:46 | history | answered | VoB | CC BY-SA 4.0 |