Due to some compatibility changes, I decided to increase version number to 2.0. You can download the 2.0 beta from here. The mentioned compatibility issues are as follows:
- The file format is changed. It is still possible to load and save Math-o-mir 1.x files (in fact, the 1.x file format is the default even in this beta) but this legacy support might have bugs. (You might want to back-up your files because this beta is not thoroughly tested yet. Also, saving bitmaps in the legacy format is not supported.) The new Math-o-mir 2.x file format is available under the Save As dialog box: here you can choose option “MOM file (2.x)”. The new file format is still XML, but generated files will be smaller. As a result I removed the option “MOM compressed file”.
- The toolbox items are rearranged. Many are removed and few new ones are added. As a result, if you had some keyboard accelerators configured they might not work correctly any more and you will have to reconfigure them.
The reason for file format change is to decrease the file size. Math-o-mir files are very verbose (they still are, only to a lesser extent) as a result of XML usage. I roughly estimate that an average page adds about 50kB to the file size. The new file version significantly improves bitmap storage. If you used to paste large bitmaps into Math-o-mir documents you probably noticed that files were getting large and everything was slow. I hope it is going to be better now.
The reason for toolbox rearrangement is to group items in a more organized way. I also removed many items that were not really needed. I however added few new items:
- the ‘equal with a hat’ operator is added (coresponds to)
- the D’Alambert operator is added (just an empty box)
- the triangle symbol is added
- fancy functions for real and imaginary part of a complex number are added
Other news are that I added three additional above-variable decorations: caron (hacek), tilde and triple dot. I rearranged the software so that I have the space now to add even more decorations if needed… I upgraded the thin-line-drawing-tool so that it can draw lines angled at 45 degrees… Finally, I removed options to adjust parentheses height.
Math-o-mir blog 
I cannot remove the selection easily. I cannot remove it at all. Delete and backspace buttons only delete the last entered character. How do I remove the whole equation?
I cannot remove the selection. DEL and Backspace remove only the last character entered. I have to start a new document. Please understand that this pisses me off.
Moreover, it is fine when I type e^ipp + something else. But, if I type x^2 + (space plus, as in case of exp(power)), the input jumps somewhere to the right. I cannot enter 1+x+x^2+x^3+… in mathomir. I also cannot see my comments here. Is it intended behaviour?
Hi Valentin, I am trying to understand the problems you are experiencing… You did not see comments because I must approve all of them. Otherwise this blog would be full of spam and promotional messages.
Okay, I must admit that I cannot understand what is happening in your case.
1. Do you see these problems when using normal typing mode or when using the ‘quick typing’? You start the normal typing by mouse-click and then the blinking cursor appears. For quick typing you don’t mouse-click, but just start to type (no blinking cursor) where your mouse pointer is. The quick typing is very limited and is only useful to make small quick corrections.
2. What is your input locale? Can you change your keyboard to ‘English’ for a test? Do you have access to some other computer to try it? Is it possible that a key is stuck on your keyboard? Do you use some special keyboard-handling software?…. just some random questions because I really have no idea what is happening.
3. There are actually several different types of selection in Math-o-mir, and I am not sure which one make problems to you (if not all of them).
– a permanent selection is made by mouse click-and-drag – you drag a selection frame around objects that you want ‘permanently’ selected. It is recognized because there will exist four red squares at selection edges (used for stretching). Such selection is deselected by the Esc key or by mouse-click to empty area.
– a temporary selection (highlight, touching) is when a you hover the mouse pointer above some object and it turns blue. It should become deselected as soon as you move the mouse pointer away.
– a keyboard selection is made in normal typing mode when you hold down the Shift key and then type arrow keys. Selected elements will turn blue (with light-blue background). It can usually be deselected by releasing the shift key and just continuing typing (for example, you can release shift key and hit any arrow key)
4. To make exponents, instead of the ^ key, you might also try to use the ” (double quotation mark) key. The ^ key is problematic on some keyboard layouts. An even faster ways to type, say, x^2 is to type x and then just hit Alt+2.
I know I didn’t help you directly, but maybe I gave you some ideas to try. Let me know if you figure anything out or if you notice another suspicious behavior that could direct us toward root of observed problems.