Wechsel Bogenmass Gradmass CAS-App

GeoGebra ha inbuilt inverse trig functions. Please have a look at this list. https://wiki.geogebra.org/e...

So, and inverse sine in radians is e.g. asin(1/2), and an inverse sine in degrees is asind(1/2).

Ich habe den Vorschlag ausprobiert und bekomme in beiden Fällen das Ergebnis im Gradmaß ausgegeben. Es wäre wirklich wichtig wieder fest Grad- und Bogenmaß einstellen zu können, da meine Schüler zunehmend verwirrt und frustriert sind.

Ich habe den Vorschlag ausprobiert und bekomme in beiden Fällen das Ergebnis im Gradmaß ausgegeben. Es wäre wirklich wichtig wieder fest Grad- und Bogenmaß einstellen zu können, da meine Schüler zunehmend verwirrt und frustriert sind.

Please post the exact calculation you are trying to do

Hello,

my problem can be seen in the following picture. When I use the inverse sinus function sometimes the result is an angle in degrees and sometimes the result is an angle in radien. I need a way to determin the unit of the result before the calculation, because my students do not know what an angle in radien is yet.

Thanks

Sabine

That's strange! Please can you post the .ggb file?

Hello,

yes it is strange. I don’t have the .ggb of the example above but I can give you another one. In the Beginning I got all results of inverse trigonometric functions in degrees, but then I got one in radien an then in degrees again.

Thanks for your help,

Sabine

This topic is marked as "in the work", so I want to ask, on which report are you working? Since I cannot reproduce the bug, that Sabine_Wolff reported, I hope, you are working on integrating the option to switch between degree and radien in the settings as it is possible in the graphing calculator?

We would really need this feature!!

Sorry, that's not possible to add

You need to use the special commands asind() etc if you want degrees for those

Thank you for your answer.

We already found these commands and they help a while, but when it comes to solve equations like

solve(2*sin(x+pi/2)+0.5=1.25,x)

it would be really helpful to be able to get the result in degrees.

Please try

solve(2*sin(x°+pi/2)+0.5=1.25,x)

Ah, thank you! That is a usable workaround!

Hallo dear GeoGebra Team,

thank you for the great Work. But everything beside a simple switch between degree and radiant is not schooloriented and to complicated for students. In German acosg gives you rad not degree.

Thanks

PLEASE HELP! What am I doing wrong? It should be around 18°

Here ist the ggb-File

But everything beside a simple switch between degree and radiant is not schooloriented and to complicated for students

The bug with acosd() will be fixed soon. You can try the beta version here: https://play.google.com/app...

Thank for the reply and the sugestion. I have iOS.

I have an anothe Problem. If i try to calculate Binomial(500,0.06,39, true) it gives me only a quation Mark when I hit the approximation Button. In GGClasic on my Laptop it works. Perhaps an another bug?

Thanks in Advance