I see, interesting 'glitch'. Do you have a reference to the original font? (i.e. which calc, precisely? [Canon, Casio, HP, Sharp, TI… + model].) TIA.

Hi! So, a 5x7, originally… (the common grid, perhaps.) Your failure is terrible: I couldn't decipher most lowercase Braille-alike glyphs in a test! Removing the dead lines of pixels did not help me much more: a few characters do stand out all the same (like "MNWxy()")… Having the first line wiped out ruins the readability (more importantly than the last one). Since this matrix is not based on a narrower 3x5 layout (for 'my' project), I'm afraid I skipped the original font (if I ever saw it - though the engineers are not the best type designers!). In general, the clones use the same fonts as the real ones, for compatibility reasons (at least on old computers that rip -parts of- the ROMs). Bye!