Below is a typical formula entry in KFormula. To enter the partial derivatives and Greek letters click on the symbol combo box, on the right, and select the appropriate symbol. The symbol combo box, in the figure below, has the word “Cap” on it. Click on the return key symbol to the right of it, to enter a symbol.
The Greens formula above can be printed to a PostScript® file. To do that choose -> and configure print as shown below:
Here is what the the resulting PostScript® file should look like:
See the Mathematical Fonts section for font installation details. You must install the esstix fonts to get these results