====== Arithmetic expressions ======

 
==== Description ====
 
Arithmetic expressions are combinations of variables, constants, or functions that specify a rule to calculate a single numeric value.
 
==== Syntax ====
 
**//result = expression [operator expression ...]//**

==== Operators ====

^Priority^Operator^Keyboard Symbol^
|high 1|unary plus|+|
|1|unary minus|-|
|2|exponentiation|%%**%%|
|3|multivalued multiplication|%%**%%*|
|3|multivalued division|%%//%%/|
|3|multiplication|*|
|3|division|/|
|4|multivalued addition|+++|
|4|multivalued subtraction|---|
|4|addition|+|
|4|subtraction|-|
|5|multivalued concatenation|%%:::%%|
|low 5|concatenation|:|

== Simple Arithmetic Expressions ==

The simplest arithmetic expressions consist of a single numeric constant, a variable or an intrinsic function.  Following are examples of simple arithmetic expressions:\\ \\ 3.14161000\\  .0005\\  QTA\\  INT(2.5)\\  "144"\\ \\  \\ \\ An arithmetic operator (+, /, *, (), etc.) can combine two arithmetic expressions and produce a third arithmetic expression.   The third arithmetic expression may in turn be combined with other expressions.  For examples\\ \\ bal_ford + mo_end\\ \\ scoreA + scoreB / 2\\ \\ amt * .065\\ \\ sin(D) / cos(D)\\ \\  \\ \\ Arithmetic operations follow a strict order of priority.  See [[arithmetic_operators|Arithmetic Operators]] for details.\\ \\ BASIC+ considers character string values that contain only numeric characters to be decimal numbers.  For exampe, the expression 123 + "321" will evaluate to 444.\\ \\ Character string values that contain non-numeric characters will produce an error message when the program is run.  The string value will assume the value of 0 (zero) in this case and the program will terminate.\\ \\ == Correct Use of Arithmetic Operators ==

result = - 6 + 3

The result variable will be -3.

result = - (6 + 3)

The result variable will be - 9.

A = 5

result = 3 * 4 %%**%% 2 + A

The result variable will be 4 raised to the second power multiplied by 3 plus the current value of 5.  The result variable will be 53.
 
==== See Also ====
 
[[arithmetic_operators|Arithmetic operators]], [[multi_value_arithmetic_operators|Multi-value Arithmetic operators]]