Unexpected result when using trigonometric function on KitKat's calculator I get unexpected results when using the trigonometric functions on my Android 4.4.2 phone.

For example, if I enter sin(30)= I get the result -0.9880316 when I expect the result 0.5. It appears the phone expects trigonometric numbers to be expressed in radians rather than degrees which is uncommon - the phone's manual certainly did not mention it. Most calculators work in degrees. Decent calculators have a deg/rad/grad switch.

Is there a way to do this on the phone or am I forced to include a degrees-to-radians conversion in all my trig calculations?
This is a known feature / bug, depending on how you look at it. It is even there in Lollipop and supposed to have been fixed in Marshmallow_bug report. It is supposed to have the deg/rad switch. (Edit: Thanks to benjaminS for confirming that Marshmallow incorporates this). Couple of ways you can get around it:


Store the conversion value of ( pi/ 180) and multiply by value to convert into radians- very tedious
Use alternative from Play Store from reviews like this 
Upgrade to Marshmallow if this is important for you. Calculator has additional features with screen shots, Thanks to benjaminS again for pointing this out.  :)