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fDesc[0] = "Expression calculator xCalc evaluates expressions. You will enter the expressions just as they are. xCalc has several standard functions. Great circle calculations can be done on a sphere with Earth radius. Digit size can be adjusted (large or small). Variables can be used in expressions. Old statements can be scrolled back to editing and re-entered only with a single button. Statements are easy to enter and modify. And more.";

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