CHEM%20140L%20Session%2005

CHEM%20140L%20Session%2005 - Session 05 An Introduction to...

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5-1 Session 05 An Introduction to Mathcad - The Electronic Scratchpad Topics In this session the following spreadsheet concepts will be explored: 1. What is Mathcad? 2. Mathcad Basics The Mathcad Workspace Order of Evaluation Equal Signs Functions Entering Equations and Modifying Equations Working with Units Entering and Editing Text Defining Range Variables Creating and Formatting Graphs Saving Worksheets
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CHEM 140L Session 5 - An Introduction to Mathcad 5-2 What is Mathcad? Mathcad is a computer software program that allows you to enter and manipulate mathematical equations, perform calculations, analyse data and plot data. These features make Mathcad an invaluable tool to the scientist when addressing mathematical problems. What sets Mathcad apart from other mathematical software applications, such as Excel, is Mathcad’s ability to display equations the same way you would write them on paper. For this reason, Mathcad is known as an electronic scratchpad . In contrast to a spreadsheet, which displays its equations in terms of cell addresses, Mathcad’s scratchpad interface makes the Mathcad worksheet easy to read. Mathcad is able to solve problems much more like the way people solve equations on paper. This makes Mathcad easier to use and it makes it easier for others to read and understand the results. Equations, data tables, graphs and descriptive text can all be combined in one Mathcad document. Just as for a spreadsheet, Mathcad has the ability of automatic recalculation. If you make a change to any definitions or equations in your worksheet, the rest of the worksheet is automatically updated. This makes it easy to do “what if” calculations. Figure 5.1 : A Mathcad worksheet.
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CHEM 140L Session 5 - An Introduction to Mathcad 5-3 Some of the key features of Mathcad are: evaluation of mathematical functions mathematical problem solver unit converter symbolic evaluation of mathematical functions Mathcad Basics = The Mathcad Workspace The Mathcad workspace is shown in Figure 5.2. Figure 5.2 : The Mathcad workspace.
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CHEM 140L Session 5 - An Introduction to Mathcad 5-4 Most of the workspace is blank white space called the worksheet . The worksheet is the region where equations, text graphs, and so on, are entered. A small crosshair cursor is displayed on the worksheet. The edit cursor is the position at which an equation or text region will be displayed. Clicking the mouse anywhere on the worksheet will move the edit cursor to the location of the mouse pointer. At the bottom of the Mathcad window is the trace window . The trace window is used to debug your Mathcad worksheet if a problem arises. The Format Toolbar is similar to the format toolbars used with word processors. In Format toolbar, Mathcad displays the font type and size and style applied to the item being edited. There are separate styles defined for constants, variables and text. When you change the appearance of any constant or variable, the display format used to format all constants or variables on the worksheet change.
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This note was uploaded on 04/11/2010 for the course CHEM 1101 taught by Professor Leroy during the Spring '10 term at University of Toronto- Toronto.

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CHEM%20140L%20Session%2005 - Session 05 An Introduction to...

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