TI-60: Triangle Numbers

[Dieter]

(12-16-2018 03:35 AM)Eddie W. Shore Wrote:  Here I exploit TI-60's RST function's ability to continue program execution and using the square root function as a "tester" to calculate triangle numbers.

This is essentially a "proof of concept" on how to do loops on a calculator with an extremely limited function set without tests and goto – rskey.org calls the TI-60 "almost programmable". ;-)

In real life, if you want the sum of all integers from 1 to n you'd of course use the direct formula ½n(n+1) or ½(n²+n). Less steps, direct result.

Dieter