Falco Calculator window has:

• "About" button (opens "About Falco Calculator" dialog. It shows version of the program, Internet links of the product`s site),
• "Help" button (opens Falco Calculator Help),
• "Save" button (Saves entered meanings from input string to text file),
• "Load" button (Loades saved meanings entered before and saved),
• "Calc" button (Gives the result of calculations).

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You can input meanings to the input string:

There is also option "Always on top", which allows the program be on top always while working.

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There is panel with numbers and mathimatical symbols which allows enter numbers to the input line.

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There is "Function" button:

Which allows choose the needed function (Trigonometric, hyperbolic or others):

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"Format" button allows choose the needed format.