数学符号:
等于: ≡ equal to, the same as, is
不等于: > more than
< less than
≥ no more than
加: + add A to B, plus, sum of A and B, total
减: - minus, less, difference, subtract A from B
乘: × multiply,product
除: ÷ A divided by B,A divided into B,A divisible by B
绝对值: |…| absolute value
平方: square X2
立方: cube
开平方: square root
开立方: cube root
平行: // parallel to
垂直: ⊥ perpendicular to
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