Operators are used extensively in DM to compute numerical values.
The DM operators are:
<a href="#/operator/()">()</a> <a href="#/operator/path/%2e">.</a> <a href="#/operator/path/:">:</a> <a href="#/operator/path//">/</a> <a href="#/operator/::">::</a> <span class="DMc">// here . : / are path operators</span>
<a href="#/operator/[]">[]</a> <a href="#/operator/%2e">.</a> <a href="#/operator/:">:</a>
<a href="#/operator/%3f[]">?[]</a> <a href="#/operator/%3f%2e">?.</a> <a href="#/operator/%3f:">?:</a>
<a href="#/operator/~">~</a> <a href="#/operator/!">!</a> <a href="#/operator/-">-</a> <a href="#/operator/++">++</a> <a href="#/operator/--">--</a> <a href="#/operator/*/pointer">*</a> <a href="#/operator/&/pointer">&</a> <span class="DMc">// unary operators (* and & here are pointer operators)</span>
<a href="#/operator/**">**</a>
<a href="#/operator/*">*</a> <a href="#/operator//">/</a> <a href="#/operator/%">%</a> <a href="#/operator/%25%25">=</a> <a href="#/operator/&=">&=</a> <a href="#/operator/|=">|=</a> <a href="#/operator/^=">^=</a> <a href="#/operator/%3c%3c="><<=</a> <a href="#/operator/%3e%3e=">>>=</a> <a href="#/operator/:=">:=</a> <a href="#/operator/&&=">&&=</a> <a href="#/operator/||=">||=</a>
<a href="#/operator/in">in</a>
Each line has higher order of operations than the next. Operators within a line have equal precedence and therefore are processed from left to right as they occur in an expression. (Assignment, or operate-and-assign, are processed from right to left.)
Expressions of the form A #= B are shorthand for A = A # B except for ~= and :=.
var/N
N = 0 // 0
N += 1+1*2 // 3
if(1 + 1 == 2) N = 2 // 2
if(N==2 && 1/2==0.5) N = 0.5 // 0.5