# Calculating Error

### #1

Posted 20 May 2016 - 03:46 PM

### #2

Posted 20 May 2016 - 04:25 PM

Check the angle mode, for calculate the cos of 45 degree.

Also you have to know that equations containing trigonometry functions usually have infinite solutions

### #3

Posted 20 May 2016 - 10:53 PM

Thanks what is angle mode

Thanks what is angle mode

### #4

Posted 21 May 2016 - 08:52 AM

On the fx-9860gii you can change the angle mode to: degrees, radians, or gradians.

Degrees are the most common measurement, 360 degrees make up a full circle.

Radians are also common in High School maths and beyond, 2π radians make up a full circle.

Gradians are not so common, gradians are equal to 9/10ths of a degree. 400 gradians make up a full circle.

To switch the angle mode between degrees, radians or gradians press

, and then scroll down to Angle:, then press for Degrees, for Radians or for Gradians.
**Edited by Viliami, 21 May 2016 - 08:53 AM.**

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