清空筛选条件
清空筛选条件

How can I plot two functions in the same graph?

1 次查看（过去 30 天）
Wenchen Liu
Wenchen Liu 2022-11-1
编辑： Torsten 2022-11-1
I have a code like this:
fplot(@(x) cosh(x))
hold on
p(x) = 0.6671x^3-1.7921x^2+2.7580x-0.089
fplot(@(x) p(x))
hold off
since p(x) is a more complex function. And when I try to run the code, the command shows "Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters,
or other syntax error. To construct matrices, use brackets instead of parentheses."
I don't know how to fix for this. Please me, thank you!

请先登录，再回答此问题。

采纳的回答

Torsten
Torsten 2022-11-1
编辑：Torsten 2022-11-1
Ran in:
fplot(@cosh)
hold on
p = @(x)0.6671*x.^3-1.7921*x.^2+2.7580*x-0.089;
fplot(p)
hold off

更多回答（1 个）

Jim Riggs
Jim Riggs 2022-11-1
编辑：Jim Riggs 2022-11-1
Try this:
fplot(@(x) cosh(x));
hold on
fplot(@(x) 0.6671x^3-1.7921x^2+2.7580x-0.089);

类别

在 Help Center 和 File Exchange 中查找有关 Function Creation 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