Frequently Asked Questions

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This section presents a series of questions and answers about the UnitMath program. If you have any questions about UnitMath you would like added ( or better answers and examples ) please email your comments.

• Getting Started With UnitMath
  • What is UnitMath?
  • What can I do with UnitMath?
  • What does ~ mean?
  • How do I do a calculation in UnitMath?
• Units
  • What are Units?
  • How can I find the defined units?
  • What does a unit without a number mean?
  • How do I convert between units?
  • What else can I do with units?
  • Can I use prefixes with units?
  • What about "Normalized" equations ?
• Variables
  • How do I define my own units?
  • What if I don't like the way you defined a unit?
  • What if the unit I want is based on an equation?
  • In what order do I need to define my variables?
  • How do variables differ from units?
  • What names can I use for variables?
  • Where can I find the defined variables?
  • How do I edit an existing variable?
  • How do I delete an existing variable?
  • Why do I get a "?" in the answer?
• Precision
  • What is Precision?
  • What are significant digits figures?
  • Is precision in UnitMath just significant digits?
  • Should I care about Precision?
  • Is more precision always better?
  • Is anything exact?
  • What does precision look like in UnitMath?
  • How can I indicate precision in UnitMath?
  • Aren't significant digits good enough for precision calculations?
  • How does UnitMath calculate precision?
  • How does UnitMath decide which precision form to use on output?
  • How do I find the results precision?
• Options
  • How do I display my calculations extremes?
  • What fractions does UnitMath support?
  • How can I make $49.95 exact?
• Miscellaneous
  • What controls the output units when I don't use "as"?
  • Can I make my own set of default units?
  • Can I do currency conversions with UnitMath?
  • How do I get the most from UnitMath?

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