arcos function

[JoséDan]

Hi!

How can I to form the arccos function? It gives incorrect values to me. For example arccos 0,86= 0,55 ?!!! 

Best regards. Daniel

[smikel]

Hi JoseDan,

The Arccos function output is in Radians, so the Arccos of 0.86 = 0.5355 Radians. If you convert Radians to degrees you would get that 0.5355 Radians = 30.68°

Attached is a VI that computes the Arccos of a number in both Radians and degrees. I hope this VI is usefull.