Convertible Tubas are Tubas that can be played as a Concert Instrument and as a Marching Instrument.
What is Calc? Calc is the spreadsheet component of OpenOffice.org (OOo). You can enter data, usually numerical data, in a spreadsheet and then manipulate this data to produce certain results. Alternatively you can enter data and then use Calc in a âWhat If...â manner by changing some of the data and observing the results without having to retype the entire spreadsheet or sheet.
eCalc is a free and easy to use scientific calculator that supports many advanced features including unit conversion, equation solving, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator.