When I try to graph it says argument error - Casio FX-9750GII Graphing Calculator

Error Dimension Mismatch:
Two or more arguments must be of the same dimension. For
example, [1,2]+[1,2,3] is a dimension mismatch because the
matrices contain a different number of elements.

DOMAIN ERROR:

- You specified an argument to a function or
instruction outside the valid range. This error is
not returned during graphing. The TI-84 Plus
allows for undefined values on a graph.

- You attempted a logarithmic or power
regression with a LX or an exponential or power
regression with a LY.

- You attempted to compute GPrn( or GInt( with
pmt2 < pmt1.

The function you give as example in the additional information to your duplicate post is too simple to generate an Argument error. Maybe a syntax error but not an argument error.
Check what you enter on the line that defines the function. Do not confuse the minus sign - (for subtraction) and the change sign (negation sign) marked (-).
You can also reset your calculator by pressing the button on the back.

No. The graph of a circle is a graph, one which can have two different values for certain arguments. The graph of the top or bottom half of a circle can be considered a graph of a function.

Dimension mismatch error occurs when arguments are not with same dimensions. Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements. By the way, it it very easy to resolving your problem with graphing linear function. See captured image

From the manual:

You entered an argument with an inappropriate dimension.
You entered a matrix or vector dimension less than 1 or greater than 255 or a non-integer.
You attempted to invert a matrix that is not a square matrix.

If you can't figure it out from here, please reply to this post telling us what you were graphing or attempting to graph when you got this error.

That is normal behavior. The log functions are not defined if the argument (x value ) is negative.

Hello,
The default variable for the integral is x. If you have a product between two litteral symbols the * must be inserted. Arguments of functions must be enclosed between parentheses. To avoid errors clear the variables before the integration: [2nd][F6:Clean Up] [2:NewProb][ENTER]ENTER]



Hope it helps.

Hello,
Your question puzzled me for a while, and now I understand why tou cannot graph it. I suspect you get a syntax error. (By the way it is extremely helpfull for us to know exactly what message you get).
To draw the exponential you do not use the caret [^] as you would any power. You enter it as Y1= [SHIFT][e] [(] [X, theta, T] [)] . The parentheses seem to be unnecessary but I would enclose the argument of the function in parentheses.
Hope it helps.