HP Prime 'where' function - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: HP Prime 'where' function (/thread-254171.html) HP Prime 'where' function - bluesun08 - 10-29-2013 Is there a 'where' function key ( | ) in HP Prime, so that i can do for example: f(x):=k*x^2 f(3) | k=4 Re: HP Prime 'where' function - Walter B - 10-29-2013 ?? IMHO, 4*3^2 = 36. d:-? Re: HP Prime 'where' function - bluesun08 - 10-29-2013 Thank you joker, but as i write this was only an EXAMPLE. Re: HP Prime 'where' function - From Hong Kong - 10-29-2013 Choose the 3rd template in the top row after pressing the template button. Edited: 29 Oct 2013, 6:49 a.m. Re: HP Prime 'where' function - bluesun08 - 10-29-2013 Is there also a solution without the template? (like in HP 50g RS TOOL) Re: HP Prime 'where' function - From Hong Kong - 10-29-2013 As far as I know, no! Re: HP Prime 'where' function - Walter B - 10-29-2013 Without a Prime, I'd simply define that function being f(x, k) and calculate f(3, 4). What's wrong with that approach? d:-? Re: HP Prime 'where' function - bluesun08 - 10-29-2013 What a pity! Re: HP Prime 'where' function - Joe Horn - 10-29-2013 Quote:What a pity! It's a pity that "|" requires TWO keystrokes (or, to be precise, one keystroke and one tap)? The only way to reduce that would be to put it on a primary key, losing whatever is on that key now. Re: HP Prime 'where' function - Steve Keeley - 10-29-2013 Try the substitute command (on the CAS/Algebra menu): subst(f(3), k=4) Re: HP Prime 'where' function - bluesun08 - 10-29-2013 An ideal place for the "|"-sign would be SHIFT 6. Re: HP Prime 'where' function - Joe Horn - 10-29-2013 Quote:An ideal place for the "|"-sign would be SHIFT 6. That would require three strokes (shift, 6, |). Its current location only requires two (template, |). Hey, I just noticed that both the 50g and Prime require exactly the same finger travel to press "|". On the 50g, the distance between the right-shift key and the TOOL key is 3 inches (7.5 cm), and on the Prime, the distance between the template key and the "|" on the screen is exactly the same. Same number of presses, and same finger travel. Hmmm.