ERROR'Not enough input arguments.'

This is my code:

function y=gx(x)


y=(5.*x-6)./((x-1.3).^2+0.03)+(9.*x)./(x.^3+0.04)-(x-0.5)./((x-0.98).^2+0.07)
end

the error is:

Not enough input arguments.

Error in gx (line 4)
y=(5.*x-6)./((x-1.3).^2+0.03)+(9.*x)./(x.^3+0.04)-(x-0.5)./((x-0.98).^2+0.07)

Can anyone help me?

Answer 1

[Star Strider]

Apparently, you are calling ‘gx’ without an input argument, perhaps by using the green Run arrow in the editor. Functions that are written with input arguments must always be supplied with them in calls to them.

When I run it from a script:

x = 42;
y = gx(x)

it runs without error and produces:

y =
         0.103589181681349

Call it from a script (or the Command Window) with an argumetnt, and it should do what you want.

[cosine Zheng]

If I just want to get the plot of gx. How should I do from a script?

[Star Strider]

This is how I would do it:

xv = linspace(-10, 10, 250);

figure
plot(xv, gx(xv))
grid

Define ‘xv’ to be the range you want.

Also, put a semicolon (;) at the end of the ‘y’ assignment in ‘gx’ to keep it from printing the results of its calculations to the Command Window.

[cosine Zheng]

Oh,thanks for your answering.

[Star Strider]

My pleasure.

If my Answer helped you solve your problem, please Accept it!