kotlin.math.sin(Double) <> Windows Calculator Sin output

Question

The kotlin.math.sin(Double) result is not same with the windows scientific calculator result. Im still a beginner in kotlin Android Studio. Please help.

Below are the screenshots of my problem.

Windows Scientific calculator Output: 0.17364817766693034885171662676931

Android Studio (Kotlin) Output: -0.5440211108893698

Thank you for your help.

Duplicate of [Unusual Math with incorrect results?](https://stackoverflow.com/questions/8691800/unusual-math-with-incorrect-results) - Note the language is irrelevant, the problem is the same and is solved the same way — Nick is tired, Jan 26 '20 at 03:35

score 1 · Answer 1 · answered Jan 26 '20 at 03:24

1

Kotlin is expecting radians and calculator is expecting degrees.

answered Jan 26 '20 at 03:24

Buddy

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To be precise the windows calculator has a toggle button marked `DEG` or `RAD` for toggling between the two – Nick is tired Jan 26 '20 at 03:27
Thank you. How can I convert my kotlin.math.sin (RAD) to kotlin.math.sin (DEG) in my program? – Chet Jan 26 '20 at 04:25
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To convert RAD to DEG there's the function `Math.toDegrees(double rad)` – Luca Murra Jan 26 '20 at 15:07

kotlin.math.sin(Double) <> Windows Calculator Sin output

1 Answers1