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calc: Data Types

 
 5 Data Types
 ************
 
 This chapter discusses the various types of objects that can be placed
 on the Calculator stack, how they are displayed, and how they are
 entered.  (Data Type Formats, for information on how these data
 types are represented as underlying Lisp objects.)
 
    Integers, fractions, and floats are various ways of describing real
 numbers.  HMS forms also for many purposes act as real numbers.  These
 types can be combined to form complex numbers, modulo forms, error
 forms, or interval forms.  (But these last four types cannot be combined
 arbitrarily: error forms may not contain modulo forms, for example.)
 Finally, all these types of numbers may be combined into vectors,
 matrices, or algebraic formulas.
 

Menu

 
· Integers                The most basic data type.
· Fractions               This and above are called “rationals”.
· Floats                  This and above are called “reals”.
· Complex Numbers         This and above are called “numbers”.
· Infinities
· Vectors and Matrices
· Strings
· HMS Forms
· Date Forms
· Modulo Forms
· Error Forms
· Interval Forms
· Incomplete Objects
· Variables
· Formulas
 

Info Catalog calc: Introduction calc: Top calc: Stack and Trail