Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
Tag for issues caused by discontinuity (e.g. Boole, Piecewise, UnitStep, If, etc) in arithmetic function.
0
votes
1
answer
59
views
NDSolve::nlnum and NDSolve::bcedge
I'm trying to address a mass diffusion problem, and I'm encountering two problems.
m1 = 2;
m2 = 36;
Z1 = 1;
Z2 = 6;
kT = 5;
D0 = 1;
g = 2.1;
n20[z_] :=
Piecewise[{{1/(1 + Z2)*Exp[-m2*g*z/(1 + Z2)/k …