以下为gre考试数学常见符号的英文表达方式,考试时这些符号很有可能用英文表示,所以考生一定要知道其表达含义。
??? =?? is equal to
????≠ ??is not equal to
????≈ ??is approximately equal to
????> ??is greater than
????≥ ??is greater than or equal to
????< ??is less than
????≤ ??is less than or equal to/square root
????0.8 the repeating decimal 0.888…
????r s't“ r degrees s minutes t seconds
????∠???angle
????right?angle
????┻ ??is perpendicular
????│x│ ?absolute value of x
????∥ ??is parallel to
????△ ??triangle
????~ ??is similar to
????≌ ??is congruent to
????△x ??delta x
????AB ??arc ?AB
????π ??pi(3.1415…)
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