Ternary: Inline if/else and switch/case

An inline conditional. Can be used as boolean (if/else) or multichoice (switch/case)

An inline conditional. Can function as an if/else of as a switch/case.
Usage:

If/else behavior:
tern(cond,a,b) returns: a if cond is true, else returns b

Switch/case behavior (>3 arguments):
tern(s,case1,value1,..,caseN,valueN,<defaultValue>), same as:
switch s
case case1
return value1
..
case caseN:
return valueN
otherwise:
return defaultValue (default = NaN)

Examples:
If/else behavior:
disp(tern(val>0,'value is positive!', 'value is negative'));

Switch/case behavior:
disp(tern(val,1,'value is one!', 2, 'value is two!', 'values is not 1 or 2'));