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| author | bnewbold <bnewbold@robocracy.org> | 2014-05-21 00:59:10 -0400 |
|---|---|---|
| committer | bnewbold <bnewbold@robocracy.org> | 2014-05-21 00:59:10 -0400 |
| commit | 392a611d547287920c46edbdaa8c2025596c8edb (patch) | |
| tree | 3deca9e73fd2866739f5c8e53adb21b4700c6ad8 /assignments/hw02/euler.m | |
| parent | e6041a7844841e6bf138f814a705c21d6fb66c2e (diff) | |
| download | dmmsb2014-392a611d547287920c46edbdaa8c2025596c8edb.tar.gz dmmsb2014-392a611d547287920c46edbdaa8c2025596c8edb.zip | |
hw02 first attempt
Diffstat (limited to 'assignments/hw02/euler.m')
| -rw-r--r-- | assignments/hw02/euler.m | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/assignments/hw02/euler.m b/assignments/hw02/euler.m new file mode 100644 index 0000000..1773e6c --- /dev/null +++ b/assignments/hw02/euler.m @@ -0,0 +1,26 @@ +% % Use Euler's method to integrate simple one variable ODE
+% % Use program as template for more interesting models
+
+% % Note: produces slightly different output compared with
+% % example shown in class. Different values of b, dt, tlast
+
+a = 20 ;
+b = 0.5 ;
+c = 5 ;
+
+dt = 0.2 ;
+tlast = 20 ; % s
+
+iterations = round(tlast/dt) ;
+xall = zeros(iterations,1) ;
+
+x = c ;
+for i = 1:iterations
+ xall(i) = x ;
+ dxdt = a - b*x ;
+ x = x + dxdt*dt ;
+end % of this time step
+
+time = dt*(0:iterations-1)' ;
+figure
+plot(time,xall)
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