Syntax error... or am I doing something wrong?

05242016, 06:04 AM
Post: #1




Syntax error... or am I doing something wrong?
I don't seem to be able to enter a number containing fractions in polar coordinates.
Something as simple as 1/2v50 (v would be the angle symbol). raises a syntax error. I've tried with different combination of parenthesis... but it still get a syntax error. Am I doing something wrong? Thanks! 

05242016, 07:56 AM
Post: #2




RE: Syntax error... or am I doing something wrong?
I suppose this happens in the HOME, in the CAS mode does work fine.
Best, Aries ;) 

05242016, 09:44 AM
Post: #3




RE: Syntax error... or am I doing something wrong?
Have you tried using the [Shift][X] (the multiply key), for the angle symbol?
1/(2∡50) ==> Result(angle mode). Dale 

05242016, 12:27 PM
Post: #4




RE: Syntax error... or am I doing something wrong?
(05242016 09:44 AM)DrD Wrote: Have you tried using the [Shift][X] (the multiply key), for the angle symbol? The problem is not the angle symbol. Basically I can enter: 1∡90 but not: 1/2∡90 Or even: 10^2∡90 In Cas mode it seems to work but i wonder why it doesn't in Home... Thanks! 

05242016, 01:43 PM
Post: #5




RE: Syntax error... or am I doing something wrong?
When the polar value is completely represented, in the two examples you provided, they did work in [Home] r10077. Copy/paste separates the angle parameter, and makes it look like:
1/2 ∡90, and 10^2 ∡90; instead of 1/(2∡90), and 10^(2∡90). That's probably not the issue, but the examples paste into the command line separating the angle, which, coincidentally, DOES cause a syntax error. If the polar value is enclosed in parentheses, (not strictly required), there should be no issue (I hope!). 

05242016, 02:33 PM
Post: #6




RE: Syntax error... or am I doing something wrong?
(05242016 06:04 AM)farefernandez Wrote: Something as simple as How is that simple? Is that (1/2)<90? 1/(2<90)? (1/2)*1<90? When you start getting even more complicated things, how does the angle symbol behave in terms of order of operations? TW Although I work for HP, the views and opinions I post here are my own. 

05242016, 03:22 PM
(This post was last modified: 05242016 03:25 PM by informach.)
Post: #7




RE: Syntax error... or am I doing something wrong?
Hi!:
See, the attached images. You needed configure, in HOME ... Degrees a+bi or (a,b) ... is same Then, write ... (1/2,50) ... With Shift and * X (angle symbol), then ... 

05252016, 05:10 AM
Post: #8




RE: Syntax error... or am I doing something wrong?
In cas something like
1<pi returns 1+1.0780...E14. 1<(pi/2) returns 5.3903...E15+i I am surprised to see these results in the cas. I always thought that the cas would treat everything symbolically so that pi would be recognized. Is there an explanation for these results and/or would it be a problem to catch such special cases? 

05252016, 01:56 PM
(This post was last modified: 05252016 02:22 PM by informach.)
Post: #9




RE: Syntax error... or am I doing something wrong?
Hi!, leprechaum:
With complex (a+bi), or (a,b) and in, degrees (but, not CAS) ... (1,PI) = 1+PI*i (1,PI/2) = 1+PI/2*i See, the left image ... In Polar, CAS and degrees. See, the other image ... Note: This is checked with Wolfram Alpha, too. Kind Regards. informach 

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