GreaterEqual

GreaterEqual

a >= b represents the mathematical 'greater than or equal to' relation. Use a >== b to check it in a script.

Usages

a >= b or GreaterEqual[ a, b ]

a >= b represents the inequality a ≥ b, for example in a definition or an answer. In a script, it is not checked: 4 >= 4 stays 4 >= 4. It is checked when it is used as a condition in If or While, or inside Simplify.

Example in rendered
The inequality x ≥ 4. x >= 4 or GreaterEqual[ x, 4 ] x≥4x \ge 4
Example in out
Not checked in a script. 4 >= 4 4 >= 4
Checked inside Simplify. Simplify[ 4 >= 5 ] False
Checked as a condition. a := 4
If[a >= 4]
  r := 1
Else
  r := 0
End		 r = 1

a >== b or GreaterEqualEval[ a, b ]

a >== b checks directly whether the value of a is greater than or equal to the value of b, and returns True or False. If one of the values is not known, the comparison is left unevaluated.

Example in out
4 is equal to 4. 4 >== 4 True
3 is smaller than 4. 3 >== 4 False
Each element of a list is compared. {1, 5} >== 4 {False, True}
Cannot be decided. x >== 4 x >== 4
Details
  • Note the notation: >== with two = signs. >>= is not valid syntax.

See also: Greater, SmallerEqual, EqualsEval, If