ESP8266 Community Forum

Hello,

I am presently using one of the "nodemcu-master-14-modules-2016-02-25-04-41-19-float" firmware. I am unable to perform the atan() operation. It comes back with the error of "attempt to call field 'atan' (a nil value)"

My research on the internet points towards the error of it being a firmware issue. Does anybody has any recommendation?

~Ansh Verma

try atanf

onehorse wrote:try atanf

I tried using this but doesn't work. As a matter of act non of the trigonometric operations work. All of the other mathematics operations (math.abs,sqrt etc) are doing perfect.

Look at the math lib in the github firmware repository. You will see that all of the trig functions have been removed for space reasons