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
162.366+165.395+20=
125.485+165.395+20=
0.7×9.8×(26.94-2.83)=
0.665×244.16=
(0.575×3.24+0.7×15.6+0.3×0.08+0.65×7.39+0.5×0.63)/26.94=
244.16×(tan(45+14.355/2)*tan(45+14.355/2))+2×13.95×tan(45+14.355/2)=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan(45-14.355/2)=
244.16×(tan(45-14.355/2)*tan(45-14.355/2))-2×13.95×tan(45-14.355/2)=
(22×3.24+12.9×15.6+31×0.08+13.8×7.39+15.5×0.63)/26.94=
(8×3.24+14×15.6+7.6×0.08+16.2×7.39+17.9×0.63)/26.94=
10^5/10^-1*10^0
1/2×[1.0×π×(60×12)]
17.8×2.83+(17.8-9.8)×(3.24-2.83)+(17.8-9.8)×15.6+(19.1-9.8)×0.08+(17.9-9.8)×7.39+(17.9-9.8)×0.63=
1.35×1.0×3×14.3×10^3×0.49
√((2100×2100)/(700×700))
0.7×9.8×(38.73-8.48)=
0.633×396.73=
(0.575×7.55+0.68×0.43+0.7×16.47+0.65×8.28+0.39×0.17+0.5×6.03)/38.93=
396.73×(tan(45-15.055/2)*tan(45-15.055/2))-2×13.935×tan(45-15.055/2)=
396.73×(tan(45+15.055/2)*tan(45+15.055/2))+2×13.935×tan(45+15.055/2)=
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