# Using Tedds Trig functions in equations involving radians

2021

Tekla Tedds
Tekla Tedds for Word

2020

Tekla Tedds
Tekla Tedds for Word

2019

Tekla Tedds
Tekla Tedds for Word

2018

Tekla Tedds
Tekla Tedds for Word

2022

Tekla Tedds
Tekla Tedds for Word

2023

Tekla Tedds
Tekla Tedds for Word

Care must be taken when writing calculations involving angles where these are in radians, not degrees. This is common for example in equations derived from calculus where angles must usually always be specified in radians.

If the unit of an angle is not specified, Tedds trig functions assume the angle is in *degrees*, not radians (unlike MS Excel). If an angle is in radians you must either:

- Use the correct unit ‘rads’ in the variable definition or Trig function
- Convert the value to degrees

See the attached Tedds for Word document for an example.