If you're an physicist/engineer/mathtype, you should know many measurements always come with adjustments. All digital thermometers, for example, have non-linear

If you're an physicist/engineer/mathtype, you should know many measurements always come with adjustments. All digital thermometers, for example, have non-linear response with temperature, and thus are linearized (adjusted) with a complex model that represents the response character of a thermistor (or any other digital temperature sensor). There's whole disciplines in engineering that deal with getting good data from imperfect sensors. Have you heard of sensor fusion? Whole field that uses multiple sensors to mutually correct error. Have you ever wondered why digital barometers come with a thermometer? No, it's not because it's convenient, it's because a raw digital barometers reading fluctuates with temperature, so the temperature sensor is used to correct the raw output.