fx-82EX
√□
√■
例1
计算 √64 = 8
√■ 6 4 = √64 8
例2
计算 √0 = 0
√■ 0 = √0 0
例3
计算 √2 = 1.4142…
√■ 2 = √2 S⇔D √2 √2 1.414213562
或作为
√■ 2 = √2 1.414213562
例4
计算 √2 × √2 = 2
√■ 2 ► × √■ 2 = √2×√2 2
例5
√■ 2 ► x■ √■ 2 = √2√2 1.632526919
例6
计算 (√2√2)√2 = 2
√■ 2 ► x■ √■ 2 = x■ √■ 2 = Ans√2 2
例7
2 x■ √■ 2 = 2√2 2.665144143
例8
输入 √−2
√■ (−) 2 = Math ERROR [AC] :Cancel
[◄][►]:Goto
例9
计算 √(−1)² = 1
√■ ( (−) 1 ) x2 = √(-1)2 1
例10
计算 ln (√7) = ½ ln (7) = 0.97295...
ln √■ 7 = ln(√7 0.9729550745
例11
2 √■ 1 2 = 2 √2