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DM15L degrees issue

Posted: Mon Apr 16, 2018 10:44 pm
by zooropa1844
Good evening, fellow collectors and users,
I recently bought a DM15L and being a complete newbie to the machine I am puzzled because when setting it to degrees DEG I get different answers for sine and cosine of 45 degrees.

Is there any known issue about this topic in any of the firmwares? What can I be doing wrong?

Cheers,

Javier

Re: DM15L degrees issue

Posted: Mon Apr 16, 2018 11:29 pm
by Zaphod
What answers do you get specifically ?

Re: DM15L degrees issue

Posted: Mon Apr 16, 2018 11:36 pm
by zooropa1844
The same ones I get when I set the angle unit to GRAD. For the sin 0.850903525 and for the cos 0.525321989.

Re: DM15L degrees issue

Posted: Mon Apr 16, 2018 11:56 pm
by Thomas Okken
It sounds like the calculator is in Complex mode. In that mode, the trigs work in radians, regardless of the DEG/RAD/GRAD setting.

Re: DM15L degrees issue

Posted: Mon Apr 16, 2018 11:59 pm
by rprosperi
When you set DEG, there should be no annunciator in the bottom of the LCD (vs. "RAD" vs. "GRAD" when those modes are set); is this correct on your machine?

If so, please provide exact key sequences, such as:

[f][FIX][9]
[g][DEG]
[4][5] [SIN] => 0.707106781
[4][5] [COS] => 0.707106781

Also, what version is your ROM?

See button [E] on this page: https://www.swissmicros.com/instructions.php to see how to show the version.

Re: DM15L degrees issue

Posted: Tue Apr 17, 2018 12:12 am
by zooropa1844
Thank you, guys, after a power reset which finished with a Pr Error message is working right. It probably was in complex mode as Thomas guessed. I am kind of embarrassed but for sure it is not the calculator I am used to, and besides I allowed my toddler to mess with it this afternoon although only a few seconds.

Thank you all of you!!