Julia: Boolean operators

Boolean and (&&) operator

Operand1	Operand2	Evaluates To
true	true	true
true	false	false
false	true	false
false	false	false

As shown in the above table, && operator returns true if both the operands evaluates to true, otherwise returns false.

julia> a=10;b=20;c=30;

julia> a>b&&a>c
false

julia> a<b&&b<c
true

julia> a<b&&b>c
false

Why Boolean AND is called short circuit operator?

Since if the first statement in the expression evaluates to false, then julia won't evaluates the entire expression. So Boolean AND is called short circuit AND

Boolean or (||) operator

Operand1	Operand2	Evaluates To
true	true	true
true	false	true
false	true	true
false	false	false

As shown in the above table, || operator returns true if any of the operand evaluates to true, otherwise returns false.

julia> a=10;b=20;c=30;

julia> a>b||a>c
false

julia> a>b||a<c
true

Why Boolean OR is called short circuit operator?

Since if the first statement evaluates to true, then julia won't evaluates the entire expression. So Boolean OR is called short circuit OR.

Boolean (!)NOT operator

Operand	Evaluates To
false	true
true	false

julia> a>b
false

julia> !(a>b)
true

julia> a<b
true

julia> !(a<b)
false

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