gophysics-v0.16.0
Adding new mathematical functions: "Summatory" and "ProductOfSequence".
Moving 'PowerAt' and 'Power10' from 'gophysics.go' to 'mathem.go' (package mathem) file.
Adding new mathematical functions: "Summatory" and "ProductOfSequence".
Moving 'PowerAt' and 'Power10' from 'gophysics.go' to 'mathem.go' (package mathem) file.