How ı plot the piecewise function

1 次查看（过去 30 天）
can evkuran
can evkuran 2018-12-19
评论： Star Strider 2018-12-19
Hi my main problem is i have a function f(t)=A , t1<t<t2
f(t)=0 , otherwise
t1=2 t2=6 A=2 how can ı plot this function

请先登录，再回答此问题。

回答（2 个）

Star Strider
Star Strider 2018-12-19
Try this:
A = 2;
f = @(t, t1, t2) A.*((t1 < t) & (t < t2)); % Use ‘Logical Indexing’
t = linspace(0, 10);
t1 = 2;
t2 = 6;
figure
plot(t, f(t, t1, t2))
grid
  4 个评论
显示 2更早的评论
madhan ravi
madhan ravi 2018-12-19
This answer clearly works but you have defined some file as plot.m please change it or rename it
Star Strider
Star Strider 2018-12-19
As a work-around (until you re-name your script), try this:
A = 2;
f = @(t, t1, t2) A.*((t1 < t) & (t < t2)); % Use ‘Logical Indexing’
t1 = 2;
t2 = 6;
figure
fplot(@(t) f(t, t1, t2), [0 10])
grid
That should run without error.

请先登录，再进行评论。

madhan ravi
madhan ravi 2018-12-19
Another possible approach:
A = 2;
t1=2;
t2=6;
syms t
f = piecewise(t>t1 & t<t2,A,0) ;
fplot(f,[0 10]) % 0 to 10 represent the domain of the function
  2 个评论
can evkuran
can evkuran 2018-12-19
its saying piecewise is undefined or unexpected
madhan ravi
madhan ravi 2018-12-19
type ver in command window , suspect you don't have symbolic math toolbox

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by