TL:DR; Calculate the percentage of any number out of any number.
Calculate the percentage of any number out of any number.Great little tool to have on hand.
A scientific calculator provides calculations within a limit of 1 to 240 significant digits. According to run mode chosen, the calculation may be followed by a report with a list of arguments and all intermediate results in chronological order.
A curve fitting program: Lorentzian, Sine, Exponential & Power series are available models to match your data. A Lorentzian series is recommended for real data especially for multiple peaked data. Another improved productivity example.
Student Grade Calculator for Excel makes easy work of grading students. It quickly weights the students grades on a per-assignment basis.