DPLS Scientific Calculator 2.4 

The calculator that comes with Windows is very limited when it comes scientific functions, but there are various advanced applications you can use, among which is DPLS Scientific Calculator. The free calculator integrates several calculators you can call for specific scientific equations.DPLS Scientific Calculator has more than 20 functions, including math, triangle, vector, gas laws, angular motion, resistor code, statistical, half-life, molar mass and molarity calculators. It also includes acomprehensive measurement converter with more than 50 categories.

Other functions the calculator supports include:

World times comparison tool that compares the current PC time with over 100 cities

A list of more than 100 constants

A list of more than 500 common compounds, including their chemical names, molecular formulas and CAS numbers

You can use these lists to paste data required for calculations. You can easily determine the molecular weights of compounds by typing their formulas, and you can include the molecular formulas into equations.

The calculator includes many flowcharts, data reference systems and science databases. The various features and functions are accessible via the Menu tab where they are grouped into four categories:

Calculators

Reference data

Internet sites

Help and search

Other functions are accessible via tabs on the lower part of the calculator window, including constants, styles, molecular mass and converter. The calculator is very comprehensive. For example, the converter alone features 47 quantity types, and the chosen quantity type determines the number of available units. For example, you will have about 42 units to choose from when you select Length.

You can even use the calculator to time yourself using the Event Timer function, which will help you boost your productivity.

DPLS Scientific Calculator is ideal for both science professionals and students, and it is compatible with all versions of  Windows from XP. The main interface is color-coded for ease of use.

http://www.dplsystems.com.au/downloads.html