Mathematics
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==equ==
Unary equation
Multivariate equation
==cal==
Solution inequality
Mathematical calculation
Fractional calculation
Mathematical statistics
Resolving prime factor
Fraction and Decimal Interactions
Lenders ToolBox
==LiAl==
Determinant
Matrix multiplication
Inverse matrix
==der==
Derivative function
==img==
Function image
==que==
Q&A
current location:Mathematical operation > History of Mathematical Computation
1/7.8
(1*10^-14)/(7.8*10^-3)
(10^-14)/(7.8*10^-3)
0.065-0.0078
ln(0.70462)
lg(7.8*10^-3)
arccos0.74
arccos-0.92
792×22
2021+2020*2022/2021*2022-1
9减去1加上8乘以4除以2等于
(2.2935-2.2379)/2.2935
1.5*(1+2.78*(221)/(1400+221)+0.15)
14*1.6%+0.7%*150+0.35%*110-0.35%*150-40%*1%*150
1.5*(1+2.78*(221+80)/(1400+221+80))
14*1.6%
272/34 865/45 286/22 348/46
5300×0.006
abs(-9)
√(60^2+84^2)
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