From Amazing Software Solutions
Modern Calculator is a beautiful advanced replacement for the standard Windows calculator. The programm combines many of the standard features of Windows calculator with an additional functions included within the application. The calculator is very handy in use both for simple calculations as for scientific ones. All of your calculations can immediately be put in the log and automatically saved to the file (you can disable this option if required). Therefore, you can always view all your previous calculations and use them in your further work.
However, if you prefer to make your calculations by formulas you can use the expression calculator included within the application for this purpose. It has a simple text field on which you can write the expression in the same way you'd write it on paper. Syntax of the expression is very easy: addition (+), subtraction (-), multiplication (*), division (/), power (^) and also trigonometrics Sin(x), Cos(x), Tan(x), Atn(x) etc.
In addition, the application has included the uncomplicated 2D plotter, which allows you to easily create 2D graph under the formula which interests you. You can copy the plotted graphs to the clipboard and paste them into your own documents as a picture, but you can also choose to save it as a graphic file