User Guide

Launching an Assistant or Tutor ...................................................... 48
Example: Using the Interactive Plot Builder ................................... 49
2.7 Task Templates .............................................................................. 51
Viewing Task Templates .................................................................. 51
Inserting a Task Template ................................................................ 52
Performing the Task ......................................................................... 53
2.8 Text Regions ................................................................................... 54
2.9 Names ........................................................................................... 55
Assigning to Names ........................................................................ 55
Unassigning Names ........................................................................ 57
Valid Names .................................................................................... 58
2.10 Equation Labels .......................................................................... 59
Displaying Equation Labels ............................................................. 59
Referring to a Previous Result ......................................................... 59
Execution Groups with Multiple Outputs ........................................ 61
Label Numbering Schemes ............................................................. 61
Features of Equation Labels ............................................................ 62
3 Performing Computations .................................................................... 65
3.1 In This Chapter .............................................................................. 65
3.2 Symbolic and Numeric Computation ............................................ 66
Exact Computations ........................................................................ 67
Floating-Point Computations .......................................................... 68
Converting Exact Quantities to Floating-Point Values ................... 69
Sources of Error .............................................................................. 70
3.3 Integer Operations ......................................................................... 71
Non-Base 10 Numbers and Other Number Systems ........................ 74
3.4 Solving Equations .......................................................................... 78
Solving Equations and Inequations ................................................. 78
Other Specialized Solvers ................................................................ 88
3.5 Units, Scientific Constants, and Uncertainty ................................. 96
Units ................................................................................................ 97
Scientific Constants and Element Properties ................................ 105
Uncertainty Propagation ............................................................... 111
3.6 Restricting the Domain ................................................................ 115
Real Number Domain ................................................................... 115
Assumptions on Variables ............................................................. 117
iv • Contents