while

while — while keyword

Description

while clause. Must be terminated by "end"

while expr ,instructions,...[,else instructions], end

while expr do instructions,...[,else instructions], end

while expr then instructions,...[,else instructions], end

Notes:

	The only constraint is that each "then" or "do" keyword must be on the same line line as "while" keyword.
	The "keyword "then" or "do" can be replaced by a carriage return or a comma.
	The optional `,else instructions` construction allows to gives instructions which are executed when expr expression becomes false.

Warning: the number of characters used to define the body of any conditionnal instruction (if while for or select/case) must be limited to 16k.



e=1; a=1; k=1;
while norm(a-(a+e),1) > %eps, e=e/2; k=k+1; end
e,k