Cloudbook: C

Logical expressions work with the values true and false, and with operators that return the values true or false. more ...

LivePerl: Try the given code to see what the value of "true" is. more ...

Relational and equality operators compare numbers and strings for size equality or inequality; different operators are used for strings and for numbers. more ...

LivePerl: Let the variable $r be a three character string, representing a codon. Print "Coding for stop" if the string is a stop codon. more ...

Use of && and || for conditional evaluation. more ...

LivePerl: Place holder. more ...