Functions code of calcAccel, calcGyro and calcGyro

I am working with the 9DoF Razor IMU M0 of Sparkfun, please:

In which specific library is the code or programming of calcAccel, calcGyro and calcGyro?

Thank you

Quote from the hookup guide:

The 9DoF Razor IMU’s firmware is available in the product’s [GitHub repository. To upload the firmware, you’ll need the SparkFun SAMD21 board definitions and the SparkFun MPU-9250 DMP Arduino library installed on your machine. Which is exactly what we’re going to document next…[/quote]](9DOF_Razor_IMU/Firmware/_9DoF_Razor_M0_Firmware at v30 · sparkfun/9DOF_Razor_IMU · GitHub)