]> Addition of measured quantities. This requires unit checking and handling combining accuracies. Division of measured quantities. This requires unit checking and handling combining accuracies. Multiplication of measured quantities. This requires unit checking and handling combining accuracies. urn:archive.astro.umd.edu/java/subtract.exe The value is the amplitude A of the PowerLawFit. There is also the SpectralIndex, base, and WaveMeasurement where A is referenced. Fit = A(Wave)*base^(SpectralIndex) This could be a dial setting, a flag setting, a parameter setting. What divides into the numerator. Divisor on Measurements besides another Measurement. Multiplier allowed in Measuremnts. 10.0 naturalLogBase 10 or e is used for the base of the power law.