### Tutorial of imath 2

You continue editing the buffer. Finally, you make the following text in the Emas buffer.

You can download the actual file binomial.txt.

#### Re-editing the Maxima command

In some cases you may get something different from what you expected. This is often the case due to the processing error in Maxima. In such a case, you remove the errnous image (often a plain square image) and restore the original Maxima command for correcting typing errors. You can move the cursor right after the errnous image. Then type:

C-c &

and the Maxima command text is restored. You can edit the command text, then type:

C-c !

again and Maxima starts processing the new command text. You can repeat this cycle to get the correct output image.

#### Viewing and editing the LaTeX command generated by Maxima

When processing the Maxima command, Maxima computes the command then the result is converted to LaTeX command and concatenated to the Maxima command with "&" character. So, after you convert the Maxima command to an image, you can see both the Maxima command and the LaTeX command by typing:

C-u C-c &

Here is a result of typing above keys when cursor is placed just after the formula in the theorem:

{maxima binomial(n-1,i-1)+binomial(n-1,i)=binomial(n,i) maxima}&{latex  {n-1\choose i}+{n-1\choose i-1}={n\choose i} latex}

You may be surprised that you can delete the Maxima command and the character "&", keeping only the LaTeX command. Still, if you move the cursor right after the LaTeX command and type:

C-c !

you will see the same formula image as you obtained previously.

Placing the cursor just after the image and type:

C-c &

and you see the LaTeX command again. Now if you are knowledgable about LaTeX, you can edit the LaTeX command and convert it to the image again.

Continues to Tutorial of imath 3 ...
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binomial.txt
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Mar 22, 2009, 8:00 AM
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