SIMSCRIPT II.5 Programming Language

SIMSCRIPT II.5 Programming Language
Table 2-2. Real-Integer Input Data Conversions
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Input Data
Variable
Format Defined as Action
integer integer Data value stored in variable
integer real Data value converted to decimal representation
and then stored in variable; e.g., 55
stored as 55.0
real real Data value stored in variable
real integer Program terminates with error message; not
possible to store fractional value in integer
representation.
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2.4 System-Defined Constants
Scientific and engineering calculations often involve standard scientific constants. Mathematical
computations frequently require values of numeric constants. Numbers such as PI = 3.14159..., and
e = 2.718... are examples of well-known and often-used constants.SIMSCRIPT II.5 maintains a library
of standard values. When the name of a library constant is used in a SIMSCRIPT II.5 program,
the correct numeric value of the constant is inserted in its place. These constants may be used
wherever a numeric literal constant could be used.
Library constants have names that look like variable names except that they end in the characters
.c (a naming convention used by the SIMSCRIPT II.5 system). The library constants and their values
are listed in table 2-3.
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