if

Programming

Conditional execution. Executes the first block whose condition is true (nonzero). Optional elseif and else clauses provide alternative paths.

Syntax

if condition ... end

if condition ... else ... end

if condition ... elseif condition ... else ... end

x = 5;
if x > 0
  disp("positive")
end

x = -3;
if x > 0
  disp("positive")
elseif x == 0
  disp("zero")
else
  disp("negative")
end