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# How to enter graphs

### Functions

After clicking the "Add graph" button, you'll see the options for adding one or two mathematical functions. If you only want one function, leave the other one blank.

### Range of x and y

You can indicate the x-value range of your graph ("Min x-value" to "Max x-value") and y-value range ("Min y-value" to "Max y-value").

### Grids

You can change the grid interval.

### Graph size

You can indicate the graph width and height you want (in pixels), within limits.

### Equal scaling

Finally, you can indicate whether you want equal scaling on your axes (this is the same as leaving "Max y-value" empty).

### Preview

You can preview your graph using the "Preview graph" button.

### Insert into post

If you are happy with the graph, click the "Insert graph into post" button. That will copy the required code to your post.

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You can add graphs to your questions and replies.

<h3>Functions</h3>
After clicking the "Add graph" button, you'll see the options for adding one or two mathematical functions. If you only want one function, leave the other one blank.

<h3>Range of <i>x</i> and <i>y</i></h3>
You can indicate the x-value range of your graph ("Min x-value" to "Max x-value") and y-value range ("Min y-value" to "Max y-value").

<h3>Grids</h3>
You can change the grid interval.

<h3>Graph size</h3>
You can indicate the graph width and height you want (in pixels), within limits.

<h3>Equal scaling</h3>
Finally, you can indicate whether you want equal scaling on your axes (this is the same as leaving "Max y-value" empty).

<h3>Preview</h3>
You can preview your graph using the "Preview graph" button.

<h3>Insert into post</h3>
If you are happy with the graph, click the "Insert graph into post" button. That will copy the required code to your post.
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