Thursday, January 19, 2017
 
   
RED Calc Free Help Getting Started

Getting Started with RED Calc Free

Finding tools and user guides

Navigate to tools and user guides using either the RED Calc Free tab in the banner menu at the top of any page or the RED Calc Free navigation menu along the left side of most pages. In the navigation menu, clicking on the Icon for user guides icon next to a tool will take you to its user guide. The Tool Descriptions page contains brief descriptions of all the tools.

Supported browsers

The advanced features of RED Calc FreeTM will run on the latest versions of these web browsers:

Chrome iconChrome    Opera icon Opera      Safari
FireFox icon FireFox      IE icon Internet Explorer (Version 8 or higher)

Using the buttons at the top of RED Calc Free Tools

  • The button is used to reset the input values of the current tool to the "factory" values.
  • The button is used to print a copy of the tool without page banners, menus, or ads.
  • The Icon for user guides button brings up the user guide for the current tool in a separate window.

Using popup help

  • Click on the label for any input or result to activate a popup help box. To close the help box, click on the "X" in the upper right corner of the box. The popup help for inputs also include the allowed range and normal range for the input. Read more.

Using Preferences allows you to set global preferences that affect ALL the tools.

  • Unit system: You may select I-P (inch-pound) or S-I (metric) units as the default setting for the RED Calc Free tools. Note that each tool also gives the option of selecting various I-P or S-I units for individual inputs and results.
  • Uncertainty feature: Turning this feature on helps you investigate how the precision of your measurements affects the accuracy of the calculated results.

More tips for using RED Calc Free Tools

  • A display-units dropdown such as [] allows you to specify the units for an input or calculated result.
  • Math on-the-fly gives you the ability to enter mathematical expressions in an input box, such as

Living area []

When you tab or click away from the input, your expression is replaced with the result, 1728 for this example. This feature provides a powerful calculator in each tool input box. (See the RED Calc Math-on-the-fly and Uncertainty Features White Paper for an in depth discussion for power users.)

  • A warning symbol to the right of an input, such as

Living area []

indicates that the entered value is outside the normal range for the input. Clicking on this symbol when it appears in a RED Calc tool will pop up a help box.

  • An error symbol to the right of an input, such as

Living area []:

indicates that the entered value is outside the allowed range for the input. The calculation will halt until you enter a valid number. Clicking on this symbol when it appears in a tool will pop up a help box.

  • A syntax error symbol to the right of an input, such as

Living area [] Icon for user guides

indicates that the calculation engine couldn't make sense of what you entered. Clicking on this symbol when it appears in a RED Calc Free tool will pop up a help box.

  • Calculated results, such as

Living area [] = 2200

are indicated by an equal sign, a blue font, and the lack of an input box.

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