I need the functions arc sin, arc cos and arc tan?

[nant...@gmail.com]

I need to my apps for math, make calcs using the functions arc sin, arc cos and arc tan. How can do it?

[SteveJG]

These all exist in the Math blocks, accessed from the Blocks screen.

Regards, Steve

The Math blocks are explained here:    http://appinventor.mit.edu/explore/ai2/support/blocks/math.html

sin, cos, tan, asin, acos, atan

convert radians to degrees, convert degrees to radians

[nant...@gmail.com]

Thanks so much to SteveJG.

[ebarbosa]

Hi!

I need to calculate sine in radians, how can I do it?

By the way I tried, the answers are incorrect. Could anyone help me?
Thanks.

[Taifun]

use Do it to debug your blocks

see also tip 4 here

Top 5 Tips: How to learn App Inventor

and: first do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the

 Top 5 Tips: How to learn  App Inventor

You will not find a tutorial, which does exactly what you are looking for. But doing the tutorials (not only reading a little bit) help you to understand, how things are working. This is important and this is the first step to do.

It would really help if you provided a screenshot of your relevant blocks incl. Do it result, so we can see what you are trying to do, and where the problem may be.

Taifun

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Trying to push the limits of App Inventor! Snippets and Tutorials from Pura Vida Apps by Taifun.         

[ebarbosa]

Thank you!

I'm making a calculator that calculates sine, cos and tan, and to be able to calculate in degrees or radians.

So I did a checkbox for degrees and radians to another, and the result should be according to the option chosen. So if a person marks the radians option, and then calculates the sine of a number, the result should be the sine of that number in radians...

[Taifun]

are you sure, you know what you are doing?

what about trying the Do it functionality?

Taifun

[ebarbosa]

Yes, I used Do it. Managed to solve this part, everything ok.

But there is another question now. I need to convert to radians tan and atan. The tan conversion to radians is correct, but the result of the conversion of atan to radians is going wrong ...

It's strange work for some and not for everyone..

[Taifun]

your question has been answered here https://groups.google.com/d/msg/app-inventor-developers-library/h9QP2vfzO0A/OEsMDdpvzUIJ

Taifun