记录Calculator的BUG [2]
>> 2+(0-1)
in> 2+(0-1)
out> (2+-1)
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已解决
>> sum(1/sqrt(n),n,1,3)
in> sum(1/sqrt(n),n,1,3)
out> sqrt/1+sqrt/2+sqrt/3+0
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[BUG]
>> 2.71828183^2.3025
in> 2.71828183^2.3025
out> 2.1100000000
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>> ln(65)
in> ln(65)
out> 138.31776583
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