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© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz A 6-minute slide show to illustrate the main features of Mathcad documents are used for engineering and financial mathematics calculations. They are intuitive, easily audited and portable. If what you see here looks like a better way to do your job, contact HRS today. click here to begin
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Mathcad allows you to document your calculations and easily check them Here is a screen picture of a very simple Mathcad document
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Text is placed anywhere on the page
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide You can define named mathematical variables
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide New variables can be based on any mathematical expression of existing variables
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide If you type the name of an existing variable, followed by the = sign, Mathcad gives you the present value of that variable
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide If you then change any variable that is used to define other variables, the values of the other variables are automatically updated
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Mathcad allows you to incorporate spreadsheets Here we do it to show how much harder to read a spreadsheet is than Mathcad When you double click on the embedded spreadsheet, you can activate it in Mathcad
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Here is the value of z And here is the expression you need to interpret! Which do you prefer?
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Electrical calculations often use complex numbers Sometimes you need exact answers This is easier to calculate in a microprocessor
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Define your own area function Now use it with a value of r -including units, if you want Functions can use other functions Very often you will use Mathcad’’s own built-in functions, that cover many areas of calculation
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Mathcad allows the use of units in its calculations, using the abbreviations you are used to. It will automatically take care of unit conversions and output its results in SI units. Set the values of variables Define an expression When you show the result, Mathcad knows this is an energy, and shows it in Joules Double click the units place-holder to change the units, if necessary
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Insert a data entry type Excel component The data in the spreadsheet is stored in a matrix called M Choose a 3D graph type Type M to connect the data with the graph
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz Getting specific data from Excel Choose an Excel component from here Say where the data is See the Excel data within Mathcad Tell Mathcad names you want for the vectors next slide
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Choose a 2D Scatter Plot Replace the place-holders by the Year and Count variables You can plot your data, easily
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Here we solve a system of nonlinear equations numerically. We'll give the solver guesses for the variables to start the process: “Given” and “Find” work in pairs These equations set allowable values of x and y The Find expression gives values of x and y that fit the conditions
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide When you do integrations, the method appropriate for the expression must be chosen. Sometimes, an equation can be simplified before it is evaluated - this gives you greater speed and more precision. The Optimise option tells Mathcad to try this. I right clicked on the integral sign to show the options - Mathcad has chosen an adaptive algorithm. In this case, the integration can be performed by evaluating this numeric expression.
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide To designate a set of commands as a program, you use the program line tool The assigned variable takes the value of the last assignment on the program line
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide You can highlight, lock and encrypt your key statements, so your documents are secure Select part of your document, and choose Insert/Area Set the properties of the area Choose whether to lock and/or collapse it
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide You might think this is a lot to learn. Mathcad is powerful, but it is also intuitive, and comes with many web-based and built-in resources to get you started. You can buy additional Mathcad documents and program extensions, to give you easy access to the world’s knowledge in signal processing, image processing, mechanical design and many other areas
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz next slide Training As with any program, the quickest, easiest, and in the long run cheapest way to learn is to pay a professional trainer to teach you and your staff. HRS has a schedule of open-to-everyone beginner’s Mathcad courses and also runs customised in-house training courses. Contact us for details.
© HRS Ltd, 2002. In NZ phone 0800 477 776, www.hrs.co.nz Thank you for taking the time to watch this presentation Mathcad is sold in several versions and with different licensing options. For details on these please contact your dealer. In New Zealand this is HRS Ltd New Zealand’s Technical Software Source Tel: 0800 477 776 or Email: email@example.com. In other countries please go to www.mathsoft.com
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