'radians' and 'degrees' function not declared

[creativeknights2012]

I'm getting compiling errors when I try to compile Arduino: 1.6.3 (Windows 7), Board: "Intel® Edison"

TinyGPS++.cpp: In static member function 'static double TinyGPSPlus::distanceBetween(double, double, double, double)':

TinyGPS++.cpp:290:39: error: 'radians' was not declared in this scope

double delta = radians(long1 - long2);

                                   ^

TinyGPS++.cpp: In static member function 'static double TinyGPSPlus::courseTo(double, double, double, double)':

TinyGPS++.cpp:314:38: error: 'radians' was not declared in this scope

double dlon = radians(long2 - long1);

                                  ^

TinyGPS++.cpp:325:20: error: 'degrees' was not declared in this scope

return degrees(a2);

                ^

Error compiling.

This report would have more information with "Show verbose output during compilation" enabled in File > Preferences. this library using Arduino 1.6.3 on an Intel Edison board.

[creativeknights2012]

This issue isn't just constrained for the Intel Edison board either. The arduino library has completely removed the radian and degree math functions.

[creativeknights2012]

Problem solved. Just needed to change them to cosine math functions.

[dokterbob]

@creativeknights2012 What exactly did you change here? I'm having the same problem and I fail to understand how TinyGPSPlus is apparently still using these removed Arduino functions.

[jorgemzz]

I am porting TinyGPSPlus for linux, I've already port some arduino specific functions like millis() for linux, now I have that radians() was not declared. I've just realize its a function to convert lat(DDDD.DD degree + decimal degree format) to radians. To solve that issue would be as easy to define a function to convert degrees to radians.