Please note that the recommended version of Scilab is 6.0.0. This page might be outdated.
See the recommended documentation of this function
keyword for conditional execution
if expr1 then statements elseif expri then statements .... else statements end
- expr1, expri
blocks of valid statements.
if statement evaluates a logical expression and executes a group
of statements when the expression is true.
expri are expressions with numeric or boolean
expri is a non-scalar value then the condition is true only if
all entries of this value are true or different from zero.
else provide for the
execution of alternate groups of statements. An
which matches the
if, terminates the last group of
statements. The line structure of
if is not significant, the
only constraint is that each
then keyword must be on the same
line as its corresponding
then can be replaced by a carriage return or a
According to the Code Conventions for the Scilab Programming Language it is recommended:
Start each statement on a new line.
Write no more than one simple statement per line.
Break compound statements over multiple lines.
For example, use:
Warning: the number of characters used to define the body of any conditional instruction (if while for or select/case) must be limited to 16k.
i=2 for j = 1:3, if i == j then a(i,j) = 2; elseif abs(i-j) == 1 then a(i,j) = -1; else a(i,j) = 0; end, end
- try — beginning of try block in try-catch control instruction
- while — while keyword
- select — select keyword
- boolean — Scilab Objects, boolean variables and operators & | ~
- end — end keyword
- then — keyword in control flows 'if' and 'select'
- else — keyword in if-then-else and select-case-then-else
- comparison — comparison, relational operators