What is a good calculator for trigonometry?
Any calculator sold as a "scientific calculator" has the basic
trigonometric functions (sin, cos, tan) and the inverse
trigonometric functions (arc-sin, arc-cos, arc-tan). That's about
all you need.You can also use the calculator that comes on your
computer - for example, in Windows, press Windows-R, and then type
"calc". You may have to change the calculator mode, to "scientific
calculator".
Yet another option is a spreadsheet, for example, Excel. Note
that in Excel, angles are expressed in radians; if you want
degrees, you also need the special functions to convert degrees to
radians, or radians to degrees.
However, if you want to do your homework while you are NOT at
your computer, you are better off buying a calculator.