Mathematics
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中文
Language:English
==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
10lg(1000)
10lg(0.07)
10lg0.07
10lg-0.07
-5+(-6)
-【-5+(-2)+(-8)】
(-2)-(-3)
(-2)+(-5)
642.203+105.784×10.43+241.001×7.87+636.830×(9.5+4.81-2.1-3-2.5-6.2+2.74)+52.507×0.25-498.423×(4.81-4.3+1.73)-146.13×0.24-207.57×12.31-232.63×7.31
9.5+4.81-2.1-3-2.5-6.2+2.74
(4.81-4.3)/3×(2×231.7021+341.34)/(231.7021+341.34)
(231.7021+341.34)/2×(4.81-4.3)
[19.1×6.2+19.5×(4.81-4.3)]×2.3712+2×12×1.5399
(4.81-4.3)/3×(2×100.8624+105.05)/(100.8624+105.05)
(100.8624+105.05)/2×(4.81-4.3)
[20+17×2.1+18.5×3+18.6×2.5+19.1×6.2+19.5×(4.81-4.3)]×0.4217-2×12×0.6494
49.211×(9.6-1.38-2.1+0.84)+105.784×(9.6-1.38-2.1-3+1.22)+241.001×(9.6-1.38-2.1-3-2.5+1.16)+43.84×0.24-207.57×(9.6-1.38-2)-232.63×(9.6-1.38-7)
(1.9-1.38)/3×(2×66.5724+102.152)/(66.5724+102.152)
(66.5724+[20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.38)]×0.6104-2×19×0.7813)/2×(1.9-1.38)
[20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.38)]×0.6104-2×19×0.7813
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