DimensionfulQuantitySubtraction Operator

Implements the subtraction operator. Here, the intended operation is ambiguous if we subtract a biased unit and an unbiased unit. The result can be treated either as biased or unbiased. For example: 20°C minus 20 Kelvin. The result is either 293.15 K - 20 K = 273.15 K or 20°C - 20 K = 0 °C (biased). Although the same, this results in difficulties if subsequently rates are calculated from this result. Because of that, the decision was made to treat the result as unbiased value.

public static DimensionfulQuantity operator -(
	DimensionfulQuantity a,
	DimensionfulQuantity b
)