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更新日期：2015-01-17
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Solving equations, system of equations, integrals, primitive, limited,,,, For secondary school students, students and teachers.
For example illustrates how to use:
Solving equations, no equation: x ^ 2 +3 x +2 = 0 solve
System of equations: x ^ 2 + y ^ 2 = 0, xy + x + y = 3 Solve
Graphing: sin (x) plot
Originally function: int xlnx
Integral: xlnx, 1 .. e int
Derivative: ln (x ^ 2 +1) der
Derivative at 1 point: ln (x), x = 1 der
Limit at the sites of: (x ^ 2-1) / (2x-1) lim
Limit at 1 point: (2x +1) / (x +2), x-> 1 lim
Analysis multiplier: x ^ 4 +1 fac
Archive calculations: (1 +2 i) ^ 2 / (1 + i) sim
The maximum value, minimum
(With or without conditions): x ^ 4-2x ^ 2 +3.1 <= x <= 3 max (min)
x ^ 3 + y ^ 3, x ^ 2 + y ^ 2 = 2 min
Total: 1 / (x (x +1)), x = 1 .. 100 sum
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