- Symbolic calculator free windows with units mathcad full#
- Symbolic calculator free windows with units mathcad software#
- Symbolic calculator free windows with units mathcad professional#
Mathcad 8 provides a complete range of math tools, including symbolic algebra, calculus, vectors, matrices, statistics, Boolean algebra, and unit conversions. The graph was a cinch to create with a few clicks of the mouse. The equations were entered quickly from the keyboard and the model, its application and limitations and variables clearly described using Mathcad's word processing capabilities. Setting up our simple spill model using Mathcad was almost a trivial task (Figure 3).
Symbolic calculator free windows with units mathcad full#
But Mathcad goes beyond the HP48, taking full advantage of the power of desktop computing to provide easier equation entry, a larger work area, word processing capabilities, and much faster equation-solving. Like the HP48, equations are entered into Mathcad just as they appear in print.
Mathcad is a live interactive math tool that lets the user instantly solve complex technical problems, using standard mathematical notation. Mathcad 8 (Mathsoft, Inc., telephone (617)577-1017, eliminates the logistical headaches of spreadsheet mathematics. It's just that it takes a lot of work to get there. Spreadsheets can do extremely powerful math and present results in an attractive manner. Separate equations must be established for each variable to be solved, known variables must be assigned to specific cells in the spreadsheet and the solution equations programmed into the spreadsheet, using arcane cell references.ĭon't get me wrong. Spreadsheets require careful planning and logistical work. Spreadsheets are a popular choice for OHS mathematics.įrankly, I don't like using spreadsheets for general mathematical work.
Symbolic calculator free windows with units mathcad software#
The necessary free software is available at the web site's () HP Calculator Emulators page ().įound on computers large and small, computer spreadsheets have become a standard tool for general problem solving on personal computers. Thanks to great user support, the HP 48 has another appeal to geeks like me: it can be cloned to run on Windows, Windows CE, and Macintosh computers.
With 148 different units in 16 different categories, OHS professionals will find the HP48's Units function indispensable for converting cubic feet to cubic meters, feet/sec. The HP48 is filled with great features, including powerful statistics, symbolic algebra, calculus, unit conversion and plotting functions. For example, the time calculated when acetone levels reach their maximum air concentration can be used by the modeling equation to calculate the maximum concentration. Since the HP48 shares variables within a directory, it is easy to set up a directory of related equations so that the variables calculated by one equation are available for use by other equations within the directory. Simply enter the values for the known variables, and the calculator automatically solves the equation for the remaining unknown. The Solve function takes an equation and creates an entry screen for the equation's variables. The HP 48's powerful Solve function eliminates the need to learn calculator programming. Simply enter the equation exactly as it appears in print and save it to the calculator's memory. Setting up an equation is a snap with the Equation editor. Hewlett-Packard's HP-48G (calculator couples a visually appealing Equation editor with a powerful Solve function, making it my favorite math tool. With the right calculator, you can put pencil and paper aside and use the calculator to both set up the equation and perform the final calculation. Unfortunately, many professionals still use their calculators the old-fashioned way: problems are set up using pencil and paper, with the calculator relegated to the final keyboard calculation. The scientific pocket calculator - small, portable, and extremely powerful - remains the mathematical tool of choice for most safety and health professionals. We'll examine the capabilities of these tools by applying them to modeling an exposure to acetone vapors from a small acetone spill in a room, assuming well-mixed air. Mathematical demands in the safety and health profession range from simple exposure calculations and conversions to more complex engineering design and exposure modeling equations.įortunately, powerful tools are available to simplify our calculations: pocket calculators, computer spreadsheets and mathematics software.
Symbolic calculator free windows with units mathcad professional#
Success as an occupational health and safety professional doesn't require a degree in mathematics, but it does demand working knowledge of an extensive and growing body of equations and mathematical models.
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