Dear Programming in J, Thank you for your responses. I should have updated to the current stable version. (I had thought it would wipe out the old version as some other programs do; but thankfully it did not.) Yes, now it is much faster on matrix multiplication. It is interesting that my laptop is slightly slower than a phone.
Here is a small observation. In JQt there is a functionality "Run Clipboard F8". In J805 it pastes in the code, runs it, and starts a fresh input line. In J902 it does the same but stops at the last line of the output and puts the cursor there so you need to delete the last line by hand before you can go on to the next command. I think the old way was a little more pleasant. Is this a feature or a small bug? I know perhaps it is bad form to paste in code, but I do it pretty often, especially some J code that I generate by a spreadsheet. At least on Windows 10, JQt has the default cursor a thin flashing |, which does not get any thicker with making the font bigger. Unfortunately, I can no longer see it very clearly, especially in the middle of a word. Is there a way or an option to change the cursor to a big fat rectangle? (I looked at the file "Edit > Configure > Qt Ide", but there was no option obvious to me.) Thank you very much! All the best, Imre Windows 10 ~~~~~~ J805 example NB. Pasting a first example with F8. f=: 3 : 0 'Does Run Clipboard F8 give me a new line or stop after the )?' ) <-- Cursor here. NB. Pasting a second example with F8. 1+2 3 <-- Cursor here. ~~~~~~ J902 example NB. Pasting a first example with F8. f=: 3 : 0 'Does Run Clipboard F8 give me a new line or stop after the )?' )<-- Cursor here. If you just hit "enter", it just chokes with an error on the ")". NB. Pasting a second example with F8. 1+2 3<-- Cursor here. > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm