"Farad is a general purpose engineering calculator. It supports algebra, matrices, units, functions, and tolerance analyses." "Set the precision in the text box at the top" "Perform basic arithmetic:" 1 + 1 "Put text in double quotes to add a comment in the output." # Make comments by starting with a hash something = 4; # Comments can go at the end of a line too # Hide outputs by ending the line with a semicolon ; "Show outputs without a trailing semicolon." "Hidden with"; "Assign variables:" a = 1 b = 2 a + b "Use units (length, mass, force, time, etc. with prefix support). Check the documentation for a full list." 3 in + 4 mm # in inch or inches 2 uN + 4 lbf # Cast units of the same quantity 4 gal + 2 pints in mm^3 4 us + 4 years in days 4 A * 240 V in kW speedOfLight in angstroms / day "Create functions:" f(x) = x^2 f(4) "Use built in functions:" true ? "true" : "false" # If statements round(3.14159, 3) log(e) "Dimensions are a nominal value with a ± tolerance. All parameters must be of the same quantity (unitless, mm, etc.). They can be defined in three ways:" "Symmetric (nominal, tolerance):" dim1 = dim(1 mm, 0.1 mm) "Limit (limit1, limit2):" dim2 = limit(2 mm, 2.25 mm) "Bilateral (nominal, tolerance1, tolerance2):" dim3 = bilateral(3 mm, 0.1 mm, -0.2 mm) "Dimensions can be cast in/to another unit:" dim4 = dim(1 mm, 0.1 mm) in in dim5 = dim(1 gal, 1 pint) to yards^3 "Dimensions can be stacked:" stack1 = dim1 + dim2 - dim3 "shaft_hole(shaft, hole) calculates slop between a shaft and hole:" shaft1 = dim(1 in, 0.1 in) hole1 = limit(1.3 in, 1.4 in) connection1 = shaft_hole(shaft1, hole1) "shaft_hole outputs a dimension and is thus stackable:" stack4 = dim2 - dim3 + connection1 to in "Get the nominal value of a dimension:" nom(stack4) "Get the tolerance of a dimension:" tol(stack4)