pm_mathSubAdd Module Reference

This module contains procedures and generic interfaces for evaluating the mathematical operator \(\mp\) acting on integer, complex, or real values.
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Data Types
interface	operator(.subadd.)
	Generate and return the result of applying the mathematical unary or binary operator \(\mp\) to the input argument(s). More...

Variables
character(*, SK), parameter	MODULE_NAME = "@pm_mathSubAdd"

Detailed Description

This module contains procedures and generic interfaces for evaluating the mathematical operator \(\mp\) acting on integer, complex, or real values.

The plus–minus sign, ±, is a mathematical symbol with multiple meanings.

1. In mathematics, it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction.
2. In experimental sciences, the sign commonly indicates the confidence interval or uncertainty bounding a range of possible errors in a measurement, often the standard deviation or standard error.
   The sign may also represent an inclusive range of values that a reading might have.
3. In medicine, it means with or without.
4. In engineering, the sign indicates the tolerance, which is the range of values that are considered to be acceptable, safe, or which comply with some standard or with a contract.
5. In botany, it is used in morphological descriptions to notate more or less.
6. In chemistry, the sign is used to indicate a racemic mixture.
7. In electronics, this sign may indicate a dual voltage power supply, such as ±5 volts means +5 volts and -5 volts, when used with audio circuits and operational amplifiers.

Given two input arguments ref and val, the procedures of this module return an array of size 2 whose elements are [ref - val, ref + val].
If ref is missing, then an appropriate default value is used.

Note

The procedures of this module offer a handy and flexible way of membership checks via operator(.inrange.).

The operator \(\pm\) performs the opposite operation of \(\mp\), that is, \(\pm = -\mp\).

See also

operator(.divmul.)
operator(.subadd.)
operator(.allin.)
operator(.anyin.)
operator(.inrange.)
operator(.anyinrange.)
operator(.allinrange.)
operator(.in.)
getMinMax
setMinMax

Test:

test_pm_mathSubAdd

Final Remarks ⛓

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For details on the naming abbreviations, see this page.
For details on the naming conventions, see this page.
This software is distributed under the MIT license with additional terms outlined below.

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Copyright

Computational Data Science Lab

Author:

Amir Shahmoradi, April 23, 2017, 1:36 AM, Institute for Computational Engineering and Sciences (ICES), University of Texas at Austin

Variable Documentation

MODULE_NAME

character(*, SK), parameter pm_mathSubAdd::MODULE_NAME = "@pm_mathSubAdd"

Definition at line 73 of file pm_mathSubAdd.F90.