Calcpad supports real and complex numbers, physical units, variables, functions of multiple arguments, graphing and numerical methods. Some advanced features are also available: conditions (#if, #else, #end if), cycles (#repeat, #loop), output visibility control (#hide, #show), content folding, smart rounding, smart brackets, etc. You can add 'comments' and "titles" in quotes. Besides simple text, you also can also include Html, CSS, SVG and JS. Use them to add images, tables and rich formatting to your calculation notes. You can also generate beautiful Html input forms and protect your source code. Just put "?" wherever you want to enter values. Calcpad is not just for for doing calculations. You can also produce professionally looking engineering documentation. All results are automatically formatted as Html reports can be thoroughly checked. That makes Calcpad a perfect solution for development of engineering workheets.