Switch it on, press SHIFT button then Mode/Setup button (top right corner) then press 2 to put it in LineIO mode. Tayeb Kazemi, www.geocities.com/tayeb_kazemi more...
yha problem is many can u show function of casio fx991MS calculator for eg. linear programming, simplex method, transportation problem, matrix, inverse, equation etc, more...
I have an old Monroe 3140 printing calculator that has served me well for many years. The other day it just started printing extra line spaces between each number, which is really wasting paper. I don't see a way to stop this in the manual nor can I find more...
please confirm that paper path is clear from any foregin object droped inside(pins-stapler-small pieces of torn paper). regarding manual you can buy it on line(it is not free of charge). more...