CSolve 指令

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此指令只能用在运算区。

CSolve[ <Equation> ]

Solves a given equation for the variable x and returns a list of all solutions, allowing for complex solutions.

范例：

CSolve[x^2 = -1] yields {x = ί, x = -ί}, the complex solutions of x² = -1.

CSolve[ <Equation>, <Variable> ]

Solves an equation for a given unknown variable and returns a list of all solutions, allowing for complex solutions.

范例：

CSolve[a^2 = -1, a] yields {a = ί, a = -ί}, the complex solutions of a² = -1.

CSolve[ <List of Equations>, <List of Variables> ]

Solves a set of equations for a given set of unknown variables and returns a list of all solutions, allowing for complex solutions.

范例：

CSolve[{y^2 = x - 1, x = 2 * y - 1}, {x, y}] yields {{x = 1 + 2 ί, y = 1 + ί}, {x = 1 - 2 ί, y = 1 - ί}}, the complex solutions of y² = x and x = 2 * y - 1.

备注：

• The complex ί is obtained by pressing ALT + i.
• See also CSolutions Command and Solve Command.

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