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
arctan(7.5/4.33)+π
arctan(-3.54/20.26)+π
arctan(7.25/12.07)
arctan(7.25/12.07)+π
arctan(-3.54/20.26)
0.8/〖(1+2.7709%)〗^0.98 +1.2/(1+2.7709%)^1.98 +1.8/(1+2.7709%)^2.98 +102/(1+2.7709%)^3.98
(2√5)²
C(C(5,3),C(4,2))
1.1+1.91+1.991+1.9991+1.99991+1.999991+1.9999991+1.99999991+1.999999991
1+0.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2+0.1 0.1×1.3+0.2×1.2+0.3×1.1+0.4×1+0.5×0.9 1+{[(77×78-6)-5679]÷107+30}×37 12-[0.2×(3+1.5)+1.1]÷[7.5-(3-2.5)×5]
3+36
4+27
5+25=
2/924
C(12,6)
A(0.6,32) B(1.5,200) C(3,465)
0.38+0.00592+0.00000592+0.00000000592+0.00000000000592 17+0.26+0.005+0.0005+0.00005+0.000005+0.0000005 4+0.69+0.0069+0.000069+0.00000069+0.0000000069 3+0.17+0.0092+0.0000592+0.0000000592+0.0000000000592
1.1×1×0.9+1×0.9×0.8+0.9×0.8×0.7+0.8×0.7×0.6 1.11×2.22×3.33×4.44÷5.55÷6.66×(1-0.37×3+0.11) (1-0.25)÷[12×(1-0.75)+1.5×0.6]×(1.2-0.6÷20)+1.5×2.5 1.1+1.91+1.991+1.9991+1.99991+1.999991+1.9999991+1.99999991
(0.9×0.8×0.7)÷(0.6×0.5×0.4×0.3×0.2×0.1)
527889.96:9600
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