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The following table shows, for each built-in numerical operation, the corresponding function name to use when providing an overloaded method for a user class.
| Operation | Method | Description | 
|---|---|---|
| a + b | plus (a, b) | Binary addition | 
| a - b | minus (a, b) | Binary subtraction | 
| +a | uplus (a) | Unary addition | 
| -a | uminus (a) | Unary subtraction | 
| a .* b | times (a, b) | Element-wise multiplication | 
| a * b | mtimes (a, b) | Matrix multiplication | 
| a ./ b | rdivide (a, b) | Element-wise right division | 
| a / b | mrdivide (a, b) | Matrix right division | 
| a .\ b | ldivide (a, b) | Element-wise left division | 
| a \ b | mldivide (a, b) | Matrix left division | 
| a .^ b | power (a, b) | Element-wise power | 
| a ^ b | mpower (a, b) | Matrix power | 
| a < b | lt (a, b) | Less than | 
| a <= b | le (a, b) | Less than or equal to | 
| a > b | gt (a, b) | Greater than | 
| a >= b | ge (a, b) | Greater than or equal to | 
| a == b | eq (a, b) | Equal to | 
| a != b | ne (a, b) | Not equal to | 
| a & b | and (a, b) | Logical and | 
| a | b | or (a, b) | Logical or | 
| !a | not (a) | Logical not | 
| a' | ctranspose (a) | Complex conjugate transpose | 
| a.' | transpose (a) | Transpose | 
| a:b | colon (a, b) | Two element range | 
| a:b:c | colon (a, b, c) | Three element range | 
| [a, b] | horzcat (a, b) | Horizontal concatenation | 
| [a; b] | vertcat (a, b) | Vertical concatenation | 
| a(s_1,…,s_n) | subsref (a, s) | Subscripted reference | 
| a(s_1,…,s_n) = b | subsasgn (a, s, b) | Subscripted assignment | 
| b(a) | subsindex (a) | Convert object to index | 
| display | display (a) | Object display | 
Table 34.1: Available overloaded operators and their corresponding class method
An example mtimes method for the polynomial class might look like
function p = mtimes (a, b) p = polynomial (conv (double (a), double (b))); endfunction
Next: Precedence of Objects, Previous: Function Overloading, Up: Overloading Objects [Contents][Index]