The figure in my code does not appear

1 回表示 (過去 30 日間)
Mohamed T. Adam
Mohamed T. Adam 2022 年 1 月 16 日
回答済み: KSSV 2022 年 1 月 16 日
The code i am working on is the euler's method for BVP. The code runs without an error but the plot window appears with no graph in it, why does this happen? and how can i fix it?

サインインしてこの質問に回答する。

採用された回答

KSSV
KSSV 2022 年 1 月 16 日
Ran in:
USe marker. As you are plottint point by point.
clc; close ;clear all
A = 2 ;
Kc = 1 ;
t1 = 0.1 ;
delta_h = 0 ;
h = 0.1 ;
z = 2 ;
figure
hold on
for t = 0:h:10
delta_h_next = delta_h + (z * h) ;
z_next = z - ((Kc/A)*z+((Kc/(A*t1)*delta_h))*h) ;
delta_h = delta_h_next ;
z = z_next ;
fprintf('%5.4f %11.8f \n', t, delta_h);
plot(delta_h,t,'*-r')
end
0.0000 0.20000000 0.1000 0.30000000 0.2000 0.34000000 0.3000 0.34500000 0.4000 0.33050000 0.5000 0.30600000 0.6000 0.27722500 0.7000 0.24753750 0.8000 0.21883250 0.9000 0.19210313 1.0000 0.16779681 1.1000 0.14603850 1.2000 0.12676950 1.3000 0.10983308 1.4000 0.09502639 1.5000 0.08213140 1.6000 0.07093258 1.7000 0.06122660 1.8000 0.05282698 1.9000 0.04556584 2.0000 0.03929392 2.1000 0.03387967 2.2000 0.02920785 2.3000 0.02517795 2.4000 0.02170262 2.5000 0.01870605 2.6000 0.01612263 2.7000 0.01389562 2.8000 0.01197599 2.9000 0.01032139 3.0000 0.00889529 3.1000 0.00766617 3.2000 0.00660685 3.3000 0.00569388 3.4000 0.00490705 3.5000 0.00422894 3.6000 0.00364453 3.7000 0.00314088 3.8000 0.00270683 3.9000 0.00233276 4.0000 0.00201039 4.1000 0.00173256 4.2000 0.00149313 4.3000 0.00128678 4.4000 0.00110895 4.5000 0.00095570 4.6000 0.00082363 4.7000 0.00070980 4.8000 0.00061171 4.9000 0.00052718 5.0000 0.00045432 5.1000 0.00039154 5.2000 0.00033743 5.3000 0.00029080 5.4000 0.00025061 5.5000 0.00021598 5.6000 0.00018613 5.7000 0.00016041 5.8000 0.00013824 5.9000 0.00011913 6.0000 0.00010267 6.1000 0.00008848 6.2000 0.00007625 6.3000 0.00006572 6.4000 0.00005663 6.5000 0.00004881 6.6000 0.00004206 6.7000 0.00003625 6.8000 0.00003124 6.9000 0.00002692 7.0000 0.00002320 7.1000 0.00002000 7.2000 0.00001723 7.3000 0.00001485 7.4000 0.00001280 7.5000 0.00001103 7.6000 0.00000951 7.7000 0.00000819 7.8000 0.00000706 7.9000 0.00000608 8.0000 0.00000524 8.1000 0.00000452 8.2000 0.00000389 8.3000 0.00000336 8.4000 0.00000289 8.5000 0.00000249 8.6000 0.00000215 8.7000 0.00000185 8.8000 0.00000160 8.9000 0.00000137 9.0000 0.00000118 9.1000 0.00000102 9.2000 0.00000088 9.3000 0.00000076 9.4000 0.00000065 9.5000 0.00000056 9.6000 0.00000049 9.7000 0.00000042 9.8000 0.00000036 9.9000 0.00000031 10.0000 0.00000027
  1 件のコメント
Mohamed T. Adam
Mohamed T. Adam 2022 年 1 月 16 日
Thank you so much

サインインしてコメントする。

その他の回答 (1 件)

KSSV
KSSV 2022 年 1 月 16 日
Ran in:
Also you can save them into an array and plot after the loop:
A = 2 ;
Kc = 1 ;
t1 = 0.1 ;
delta_h = 0 ;
h = 0.1 ;
z = 2 ;
count = 0 ;
x = zeros([],1) ;
y = zeros([],1) ;
for t = 0:h:10
count = count+1 ;
delta_h_next = delta_h + (z * h) ;
z_next = z - ((Kc/A)*z+((Kc/(A*t1)*delta_h))*h) ;
delta_h = delta_h_next ;
z = z_next ;
fprintf('%5.4f %11.8f \n', t, delta_h);
x(count) = delta_h ;
y(count) = t ;
end
0.0000 0.20000000 0.1000 0.30000000 0.2000 0.34000000 0.3000 0.34500000 0.4000 0.33050000 0.5000 0.30600000 0.6000 0.27722500 0.7000 0.24753750 0.8000 0.21883250 0.9000 0.19210313 1.0000 0.16779681 1.1000 0.14603850 1.2000 0.12676950 1.3000 0.10983308 1.4000 0.09502639 1.5000 0.08213140 1.6000 0.07093258 1.7000 0.06122660 1.8000 0.05282698 1.9000 0.04556584 2.0000 0.03929392 2.1000 0.03387967 2.2000 0.02920785 2.3000 0.02517795 2.4000 0.02170262 2.5000 0.01870605 2.6000 0.01612263 2.7000 0.01389562 2.8000 0.01197599 2.9000 0.01032139 3.0000 0.00889529 3.1000 0.00766617 3.2000 0.00660685 3.3000 0.00569388 3.4000 0.00490705 3.5000 0.00422894 3.6000 0.00364453 3.7000 0.00314088 3.8000 0.00270683 3.9000 0.00233276 4.0000 0.00201039 4.1000 0.00173256 4.2000 0.00149313 4.3000 0.00128678 4.4000 0.00110895 4.5000 0.00095570 4.6000 0.00082363 4.7000 0.00070980 4.8000 0.00061171 4.9000 0.00052718 5.0000 0.00045432 5.1000 0.00039154 5.2000 0.00033743 5.3000 0.00029080 5.4000 0.00025061 5.5000 0.00021598 5.6000 0.00018613 5.7000 0.00016041 5.8000 0.00013824 5.9000 0.00011913 6.0000 0.00010267 6.1000 0.00008848 6.2000 0.00007625 6.3000 0.00006572 6.4000 0.00005663 6.5000 0.00004881 6.6000 0.00004206 6.7000 0.00003625 6.8000 0.00003124 6.9000 0.00002692 7.0000 0.00002320 7.1000 0.00002000 7.2000 0.00001723 7.3000 0.00001485 7.4000 0.00001280 7.5000 0.00001103 7.6000 0.00000951 7.7000 0.00000819 7.8000 0.00000706 7.9000 0.00000608 8.0000 0.00000524 8.1000 0.00000452 8.2000 0.00000389 8.3000 0.00000336 8.4000 0.00000289 8.5000 0.00000249 8.6000 0.00000215 8.7000 0.00000185 8.8000 0.00000160 8.9000 0.00000137 9.0000 0.00000118 9.1000 0.00000102 9.2000 0.00000088 9.3000 0.00000076 9.4000 0.00000065 9.5000 0.00000056 9.6000 0.00000049 9.7000 0.00000042 9.8000 0.00000036 9.9000 0.00000031 10.0000 0.00000027
plot(x,y)

カテゴリ

Help Center および File Exchange で MATLAB についてさらに検索

タグ

製品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by