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<stringname="c_value.is.not.a.number">Value is not a number!</string>
<stringname="c_var.name.clashes">Variable name clashes with function name!</string>
<stringname="c_var.already.exists">Variable with same name already exists!</string>
<stringname="c_name.is.empty">Name is empty!</string>
<stringname="c_sys.var.cannot.be.changed">System variable cannot be changed!</string>
<stringname="c_pi_description">Ratio of any circle\'s circumference to its diameter</string>
<stringname="c_e_description">Unique real number such that the value of the derivative (slope of the tangent line) of the function f(x) = e^x at the point x = 0 is equal to 1</string>
<stringname="c_i_description">Imaginary unit, defined such that i^2 = −1</string>
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