ploting function and its derivative error

2021 3 9
1 个回答
更新时间：2021 3 9
3 次查看（30 天）

0 个投票

I want to run this code but I am getting error conversion to double from sym is not possible please help
clear all
close all
syms x y z t
f=log(x)+sin(x);
y=diff(f,x,1);
z=diff(f,x,4);
t=diff(f,x,5);
x=0:1;
plot(f,x);
hold on
plot(y,x);
hold on
plot(z,x);
hold on
plot(t,x);
hold off
title('multiple plots of function and its higher order derivatives');
xlabel('x');
ylabel('y');
axis square
grid;

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2021-3-9

0 个投票

Use the fplot function:
syms x y z t
f=log(x)+sin(x);
y=diff(f,x,1);
z=diff(f,x,4);
t=diff(f,x,5);
x=0:1;
figure
fplot(f,x);
hold on
fplot(y,x);
fplot(z,x);
fplot(t,x);
hold off
title('multiple plots of function and its higher order derivatives');
xlabel('x');
ylabel('y');
axis square
grid
xlim([0 1E-3]) % <- AADDED (Optional)
.

类别

在 帮助中心 和 File Exchange 中查找有关 Mathematics 的更多信息

产品

标签

Community Treasure Hunt

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

Start Hunting!

Translated by