I never knew it exists. It looks way cool.
Ah, the financial version?
Still have my 15C, you know, the weird scientific version.
I never knew it exists. It looks way cool.
+1 on the 15C.
Bought mine in 1982 for $85 add still use it today. I honestly think you’ve changed the triple button cell batteries like four times over the years.
I remember losing it once in college, and couldn’t afford a new one. I thought it might have slipped out of the rat trap on my Honda 650. Searched the parking lot at school the next morning and there it was, on the ground with tire tracks across it. Powered up fine add still runs like a top.
Comrade!
15C is so powerful — it does imaginary math.
The 15C are worth a lot of money since they don’t make them anymore.
Me too, got me through my ME degree. Made the mistake of purchasing an HP product for my college bound high-schooler. Total mistake. NO advanced high school math programs facilitate the use of RPN to crunch down a complex expression to get to the final numerical answer. The TI n-spire CX or CX CAS models are more or less strictly required to the exception of all other manufacturer’s product, even though the math teacher is obliged to claim otherwise. It turns out the TI is all the teacher himself or herself has ever used. It’s a shame because RPN is so logical and natural, vastly cutting down on time spent computing the final answer, and really limiting opportunities for error. But you can’t fight the rising tide I guess.