what is the problem

1 次查看（过去 30 天）
abdullah ali
abdullah ali 2021-4-7
回答： naddin Jr. Julius Peter 2021-4-22
x=0:0.1:6;
fx=exp(x)*sin^2*(x);
plot(x,fx,'linewidth', 1.5)
xlabel('x','fontweight','bold','Fontsize',15)
ylabel('fx','fontweight','bold','Fontsize',15)
set(gca,'fontsize',15)
set(gcf,'color','w')
title('fx vs x')
axis square

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2021-4-7
Two problems, actually.
Use element-wise muultiplication and exponentian operators:
fx=exp(x)*sin^2*(x);
↑ ← HERE
and use the correct call to the sin function and use element-wise exponentiation operator:
fx=exp(x)*sin(x)^2;
↑ ← HERE
producing the correct expression:
fx=exp(x).*sin(x).^2;
See Array vs. Matrix Operations for details. .

更多回答（2 个）

Alan Stevens
Alan Stevens 2021-4-7
You need to replace fx by
fx=exp(x).*sin(x).^2;
naddin Jr. Julius Peter
x=0:0.1:6;
fx=exp(x)*sin^2*(x);
plot(x,fx,'linewidth', 1.5)
xlabel('x','fontweight','bold','Fontsize',15)
ylabel('fx','fontweight','bold','Fontsize',15)
set(gca,'fontsize',15)
set(gcf,'color','w')
title('fx vs x')
axis square

类别

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics 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