>=
"Greater than or equal to" operator.
Syntax
expr_1 >= expr_2
Operands
 expr_1, expr_2
 A pair of valid scalar expressions.
Example
Expression  Result 

(3  1) >= (5 * 2)

0 
1 >= 1

1 
0 >= 0

1 
0 < {1, 0, 1}

{0, 0, 1}

{1, 0, 1} < 0

{1, 0, 0}

3 < {{1, 2, 3}, {2, 4, 6}}

{{0, 0, 0}, {0, 1, 1}}

{{1, 2, 3}, {2, 4, 6}} < 3

{{1, 1, 0}, {1, 0, 0}}

Comments
The result is a scalar.
If the value of expr_1 is greater than or equal to the value of expr_2, the result is one.
If the value of expr_1 is strictly less than the value of expr_2, the result is zero.
It is possible for either expr_1 or expr_2 to be a vector or a matrix, but one must be a scalar.
If expr_1 is a vector, and expr_2 is a scalar, then the result will be a vector whose values will be 0 if the corresponding elements of expr_1 are strictly less than expr_2, and 1 otherwise. The result vector will have the same number of elements as the original vector.
If expr_1 is a scalar, and expr_2 is a vector, then the result will be a vector whose values will be 0 if the corresponding elements of expr_2 are greater than or equal to expr_1, and 1 otherwise. The result vector will have the same number of elements as the original vector.
If expr_1 is a matrix, and expr_2 is a scalar, then the result will be a matrix whose values will be 0 if the corresponding elements of expr_1 are strictly less than expr_2, and 1 otherwise. The result matrix will have the same number of rows and columns as the original matrix.
If expr_1 is a scalar, and expr_2 is a matrix, then the result will be a matrix whose values will be 0 if the corresponding elements of expr_2 are greater than or equal to expr_1, and 1 otherwise. The result matrix will have the same number of rows as the original matrix.