HP Forum Archive 21

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HP-50g Syntax Question Message #1 Posted by Daniel Greenidge on 28 Mar 2012, 12:43 p.m. Hello, I'm trying to plot a basic sine curve with the HP-50g (which it does very well). However, I'm running into some trouble when I try to change the tic marks on the x-axis to appear at intervals of Pi/2. Here is my procedure: 1. LSHIFT 2D/3D 2. Cursor down to the "pixels" option 3. Uncheck it. 4. Cursor left to "H-Tick" 5. Enter this expression 'Pi/2' 6. Press enter. It then throws up a "Bad Argument Type" error. Any help would be appreciated.

Re: HP-50g Syntax Question Message #2 Posted by Luiz C. Vieira (Brazil) on 28 Mar 2012, 12:49 p.m., in response to message #1 by Daniel Greenidge HI. The correct expression for Pi would be PI (all upper-case letters). Also, check if approximate mode is active. Cheers. Luiz (Brazil)

Re: HP-50g Syntax Question Message #3 Posted by Daniel Greenidge on 28 Mar 2012, 1:02 p.m., in response to message #1 by Daniel Greenidge Hello Luiz, Approximate mode is active, and I tried both "PI" and the symbol pi (LSHIFT SPC). Still no luck. Thank you for your help though! Best Regards, Daniel

Re: HP-50g Syntax Question Message #4 Posted by Kiyoshi Akima on 28 Mar 2012, 1:17 p.m., in response to message #3 by Daniel Greenidge After putting in the expression 'pi/2' (using the Greek character ALPHA L-SHIFT SPC), press right-arrow to get past the closing quote and press EVAL before entering the expression.

Re: HP-50g Syntax Question Message #5 Posted by Crawl on 28 Mar 2012, 2:47 p.m., in response to message #4 by Kiyoshi Akima Another way to do it is Pi 2 / ->NUM Edited: 28 Mar 2012, 2:48 p.m.

Re: HP-50g Syntax Question Message #6 Posted by C.Ret on 28 Mar 2012, 3:16 p.m., in response to message #5 by Crawl Or key in 1.5708

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