Mathematics
语言:
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
(1+1/4+1/9+1/16+1/25+1/36+1/49+1/64+1/81+1/100+1/121+1/144+1/169+1/196+1/225+1/256+1/289)
(1+1/4+1/9+1/16+1/25+1/36+1/49+1/64+1/81+1/100+1/121+1/144+1/169+1/196+1/225+1/256+1/289)*6
4/1-4/3+4/5-4/7+4/9-4/11+4/13-4/15+4/17-4/19+4/21-4/23+4/25-4/27+4/29
arctan40
arctan(47/(5*3^(1/2)))+30
arctan(11/(5*3^(1/2)))+30
arctan(11/(5*3^(1/2)))+π/6
arctan(11/(5*3^(1/2)))
1.75-0.5
√3=
9×4/15
0.9×360×4418×(765-125/2)+360×2454×(615-125/2)+360×2454×(125/2-25)
0.9×360×3436×(765-125/2)+360×2454×(615-125/2)+360×2454×(125/2-25)
20lg0.032
360×4418×(765-125/2)+360×2454×(615-125/2)+360×2454×(125/2-25)
360×710×(765-331/2)+360×2454×(665-331/2
(360×3436×(765-125/2))+(360×2454×(615-125/2))+(360×2454×(125/2-25))
20lg0.8
sqrt(12)
30.5^2
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