The decimal logarithm is a special case of operation of calculation of an exponent in which it is necessary to build the basis (in this case - to ten) to receive initial number. From a general series of the bases of honor to be allocated in independent operation today only two numbers are considered. Except ten it is the mathematical constant called "number e" which is the basis of a natural logarithm. Calculation of logarithms, including decimal, at the modern level of development of the computer equipment and means of communications of complexity does not represent.
It is required to you
- Excel OS Windows, Microsoft Office, Internet access.
Instruction
1. Calculate a decimal logarithm in the calculator which is built in the Windows operating system. That to start it, click the Start-up button, gather two letters - - and press the Enter key. You will force a system to find such sequence of actions the applications and files beginning with these two letters and to activate the first line of the list of search results - "Calculator".
2. Switch the application to "engineering" version of its interface - press a combination of the Alt keys + 2. Enter number from which decimal logarithm is required to be calculated, and click the button fourth at the left in the lower number of an application interface - it is marked with the inscription log. On it operation will be completed, and the result will be displayed in a calculator window.
3. It is possible to calculate a decimal logarithm and with use of the program which is most often applied to mathematical calculations of the house and at office - the tabular editor of Microsoft Office of Excel. Start the application and go to the Formulas tab in the menu of the editor. In group of the teams "Library of Functions" open a drop-down list "Mathematical", having clicked on the average pictogram in the right column of buttons of this group. Choose LOG10 from the listed functions, and on the screen the form with the only field - "Number" will appear. Enter into it the size from which it is necessary to take a decimal logarithm, and press the OK button. The result will be displayed in the first cell of an open sheet of the spreadsheet.
4. It is possible to do in general without computing programs, and to address the Google search engine. This searcher has own built-in calculator, from you it will be required to formulate inquiry only correctly. For example, to calculate a decimal logarithm of number 9.81 enter into the field of a search query log 9.81, press the button of sending inquiry and Google will display result to within nine signs after a comma: log (9.81) = 0.991669007.