I uploaded the build 4 and you can download your favorite math note-taking application from here (or, of course, from the homepage). As in any ‘build’ release, there are only minor functional upgrades. These ‘build’ releases mostly address bugs. Nevertheless, we have the following news:

- It is possible to use Spacebar+Enter keystroke to toggle math/text typing mode. I figured that some people might prefer Spacebar+Enter instead of Alt+Spacebar (which remains available), especially those running Math-o-mir with Wine.
- More conversely, the index and exponent of a variable will not be horizontally aligned any more if the variable is in italic font (slanted). Instead their alignment will be slanted too. I wonder what are you going to say about that.
- Expression written in indexes are now rendered in a more condensed way. In fact, both indexes and exponents are now moved closer to the variable.
- It is now possible to type a Greek letter behind the delta sign (like typing DDww will create delta-omega).

I believe this is the last build of v1.92 (unless we find a terrifying bug) so I am going to start the next release. I feel I failed to define the ultimate keyboard interface in version 1.92, so I can only hope that I will reach that goal in the next release (yeah, right). I am also annoyed by many exceptions in keyboard handling – I am wondering if such exceptions are advancements or regressions.

Finally I must remind you (and search engines) that Math-o-mir is the fastest math-typing software you can find (not only within its free-price range). It will come good if you need to jot-down some math ideas or evaluate a math/physics problem. Remember that it also includes a symbolic calculator. It is not LaTeX based, so you don’t need to learn LaTeX to create math documents.

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I have the “symbolic computation” enabled but the corresponding menu never appears, as it is clamed in the PDF. It never appears literally, never at all, like if there is nothing behind the “enable” option.

Now this is weird, I would like to know more about this as it might be bug I am unaware of… To check if the symbolic computation works at all, enable it and plese make some tests:

1. Click somewhere and type (in the math-typing mode – blue cursor): a+a?? (typing the ? key twice should start the symbolic calculator and the popup menu with the solution ‘2a’ should appear). Does this happen? You can also try 1+2?? or 1+2=??… The important thing is that you make no ‘decorations’, for example adding plain text (green cursor) to the equation etc.

2. Load the example file that was installed when you installed the software. Near the bottom of the page you will find the ‘Symbolic computation’ section. Try to right-click on examples there (preferably, right-click on the ‘moving dot’ for each equation) and check if solution appears.

3. Also, the example file contains a simple graph in the ‘Function plotting’ section – is the function plotted there? You can also try to plot some of your own functions.

If the symbolic computation never works, even for the simple tests above, then there must be some bug. If you find it working for simple things, then please make computation request gradually more complex and notify me when it stops working.

No, it works. It was just not obvious that I need =?? for the menu to pop up. In the manual that I read, it was only saying

> If the symbolic computation feature is enabled, the Math-o-mir will place any calculated solution just below the ‘Exit’ option, like in the example below.

so I expected the menu to pop up as soon I enabled the symbolic computation in the options to instruct me about further options. I had no idea about ?? invocation.

Yes, double-stroking the ? key is the keyboard shortcut to invoke the symbolic calculator. In most cases you don’t need to enter the = sign first… I will remember to make the manual clearer.

I fail at derivations. I do not know how to ether dx/dx in order to be recognized by your symbolic computer.

I don’t like how I implemented derivations – it is quite complex to type. I should find handier ways, but this is always postponed because very few users actually use the symbolic calculator (either because they don’t need it or it is not powerful enough for their needs or they just don’t know about it).

To ask the software to run a derivation you must write your request using Leibniz notation and use the true-fraction form. You might try to type the following example:

//d.(xsin.xEEEd.xE??. The E denotes when you should hit theEnterkey.The result should be like sinx + xcosx…. In the example above the leading // double stroke is used to insert the fraction line. After you entered the derivation symbol (d.) you generally need to insert parentheses object to type your function into. Only some trivial functions can be entered without parentheses.