what is the problem
显示 更早的评论
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
采纳的回答
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;
更多回答（2 个）
Alan Stevens
2021-4-7
You need to replace fx by
fx=exp(x).*sin(x).^2;
naddin Jr. Julius Peter
2021-4-22
0 个投票
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
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