Free flow software for pda

It includes a comprehensive set of conversions, constants and physical property data, a built-in periodic table of the elements, number base conversions, vectors, matrices and complex numbers. It is especially designed for scientific and engineering users, students and teachers and it is also widely used in finance and medicine

In the upper part, you see the next four parts. Click on a field of the board to place the part. You can put new parts over occupied tiles, but you loose score if you do this.

If the time is zero, or after you click on the start symbol, the game is over and the water starts flowing through the pipe.

For every pipe part that gets flooded before the water starts to spill somewhere, you score points. For every pipe part that does not get flooded, you loose points.

You get double points if the water does not spill anywhere and/or if all pipe parts get flooded with water (no "dead" pipes)

O2 Tank - An application that allows users to calculate the amount of time a specific cylinder of oxygen will last, given the tank pressure, cylinder size and the rate of flow.

Unit Converter Pro is a handy utility for students, teachers, and practitioners in engineering, physics, sciences, and technical subjects.
It can quickly convert more than 1500 different units in 76 categories.

It contains the most important conversion factors for length, area, volume, mass, force, pressure, density, energy, power, temperature, dynamic viscosity, kinematic viscosity, and time units.

But it provides many high-specialized units and categories, too.

Unit Converter Pro offers customizable databases. You can hide and manage units, and categories.

The categories include:
Mass, Length, Time, and Volume.

Acceleration - Linear, Area, Data Storage, Data Transfer, Energy, Flow, Force, Numbers, Power, Pressure, Temperature, Velocity, Acceleration - Angular, Angle, Calorific Value, Concentration - Liquid Solution, Concentration - Molar, Density, Digital Image Resolution, Entropy, EU Currency, Flow - Mass, Flow - Molar, Frequency Wavelength, Fuel Efficiency, Heat Capacity, Heat Flux Density, Heat Transfer Coefficient, HVAC Efficiency, Chemical - Henrys Law, Illumination, Illumination - Luminous Intensity, Latent Heat, Luminance, Mass Flux Density, Moment of Inertia, Permeability, Radiation, Radiation - Absorbed Dose, Radiation - Activity, Radiation - Exposure, Sound, Specific Heat, Specific Volume, Surface Tension, Temperature Interval, Thermal Conductivity, Thermal Expansion, Torque, Typography, Velocity - Angular, Viscosity - Dynamic, Viscosity - Kinematic, Volume - Dry, and Volume - Lumber.

Electrical:
Capacitance, Charge, Conductance, Conductivity, Current, Electric Field, Inductance, Linear Current Density, Linear Charge Density, Magnetic Flux, Magnetic Flux Density, Magnetomotive Force, Resistance, Resistivity, Surface Current Density, Surface Charge Density, and Volume Charge Density.

Programming calculator. You can write programs for stack machine (with simplified Java like instruction set). Program consists of one or more procedure which can be nested. It is possible to access variables of top procedure (like in Pascal). You can execute program ste-by-step and inspect stack and variables in debugger. Input of commands and thier operands is optimized for mobile phone. This calculator is using floating point arithmetic with quadra precision (64 bits for both mantissa and exponent) implemented by Nikolay Klimchuk.
Main features:
- PCalc keeps in database all your programs. A program consists of main procedure and may be some subprocedures. Program may have input parameters. The values of these parameters will be asked when program is started. Access to the parameters is performed using input instruction.
- PCalc provides stack-based language (like Forth). Operands are pushed on stack and operations are performed with top elements of the stack. Temporary results also can be stores in local variables (of self or outer procedure). Stack is also used to pass parameters to procedures and return values. Content of stack after return from main procedure is treated as program result. It is also possible view values of variables of main procedure (if program should return many results it is more convenient to store them in local variables).
- PCalc provides the following groups of instructions: load/store, operators, functions, control flow. Instructions of first three groups do not require extra explanation. Control flow instructions includes procedure call, return, conditional (IF) and unconditional (GOTO) branches. IF transforms control to the specified label if value on stack is zero. Label for these instruction is specified by selecting instruction in the list. Please notice, that when you are inserting new branch instruction it is not yet present in the list.
- PCalc provides wide editing capabilities. It is possible to add/remove/rename any variable/parameter/function. The only restriction is that it is not possible to remove entity which is used. It is also possible to move label (adjusting all branch instruction referencing this label) or change target of particular branch instruction.
- PCalc allows to introduce new variable only when you are specifying operand for STORE. Operand of load method is selected from the list of available variables. It somehow prevents programmer from using uninitialized variables.

This database is designed to track inventory aspects of your business. To provide you with important information such as 1) the cost of individual items you currently are selling 2) how many items you have on hand 3) current sales prices 4) your incoming cash flow 5) total profit to date 6) margin per item 7) total margin on all sales, and 8) the quantity you need to order It is great for people who have their own business or sell on eBay or any other on-line auction.

This is Modbus master scanner supports Modicon ASCII and RTU protocols, useful for PLC or SCADA engineers.
Communicate with device through a serial cable.
You need a NULL MODEM converter when connect to devices:
Supported Modbus ASCII and RTU protocols
Supported 4 function codes 01 (Coil Status), 02(Input Status), 03(Holding Register), 04(Input Register) in read mode
Data format supported: Binary, Hex, Unsigned Integer, Signed Integer (2 bytes), Floating Point, Swapped Floating Point (4 bytes), Double, Swapped Double (8 bytes).
Connect to device through serial cable with different speeds from 600 bps -> 115200 bps, 7 or 8 databits, 1 or 2 stopbits, parity and flow control.
Dynamically change information during scan