true story. evacuating for the wildfires, i grabbed my spare HP calculator. i left firearms behind!!
i bought this thing in 1998 and it got me thru college, and my various engineering exams. i have programs in it that cover most things quickly. i have the Moody charts in it. i dont even remember what the moody charts are for!! water flow, i think.
the best thing about a spare is that i can save my programs. i lose them i just move them over from the other unit.
my work unit is tattered. but still works. i hope to limp it across the finish line with me. i baby it and even had a leather sheath made for it.