User Guide

TopicsSection
Units
• Conversions
• Applying Units to an Expression
• Performing Computations with Units
• Changing the Current System of Units
• Extensibility
Scientific Constants
• Scientific Constants
• Element and Isotope Properties
• Value, Units, and Uncertainty
• Performing Computations
• Modification and Extensibility
Uncertainty Propagation
• Quantities with Uncertainty
• Performing Computations with Quantities
with Uncertainty
Units, Scientific Constants, and Uncertainty
- How to construct and compute with expres-
sions that have units, scientific constants, or
uncertainty
• Real Number Domain
• Assumptions on Variables
Restricting the Domain - How to restrict the
domain for computations
3.2 Symbolic and Numeric Computa-
tion
Symbolic computation is the mathematical manipulation of expressions in-
volving symbolic or abstract quantities, such as variables, functions, and
operators; and exact numbers, such as integers, rationals, π, and . The
goal of such manipulations may be to transform an expression to a simpler
form or to relate the expression to other, better understood formulas.
66 • 3 Performing Computations