Solve Command
From GeoGebra Manual
Revision as of 10:56, 19 August 2011 by Alexander Hartl (talk | contribs)
This command works in CAS View only.
- Solve[ <Equation> ]
- Solves a given equation (or a set of equations) for the variable x and returns a list of all solutions.
- Example:
Solve[x^2 = 4x]
gives {x = 4, x = 0}, the solutions of x2 = 4x.
- Solve[ <Equation>, <Variable> ]
- Solves an equation for a given unknown variable and returns a list of all solutions.
- Example:
Solve[{x = 4 x + y , y + x = 2}, {x, y}]
gives (x = -1 y = 3), the sole solution of x = 4x + y and y + x = 2.
- Example:
Solve[{2a^2+5a+3=b, a+b=3},{a,b}]
returns {{a = 0, b = 3}, {a = -3, b = 6}}.
;Solve[ <Equation>, <Variable> ]
- Solves a set of equations for a given set of unknown variables and returns a list of all solutions.
- Example:
Solve[{x = 4 x + y , y + x = 2}, {x, y}]
gives (x = -1 y = 3), the sole solution of x = 4x + y and y + x = 2.
- Example:
Solve[{2a^2+5a+3=b, a+b=3},{a,b}]
returns {{a = 0, b = 3}, {a = -3, b = 6}}.
Note: See also Solutions Command.