A scientific calculator has two 'log' buttons on it. These are marked log and ln. The log key is used for calculations of the form \({\log _{10}}x\). For example, to work out that \(\log 10000 = 4\) ...

Microsoft Excel isn't just for making spreadsheets; it can also perform math calculations. Scientific and mathematical formulas frequently use exponents and square roots, and you can create a function ...