Difference between revisions of "NSolutions Command"
From GeoGebra Manual
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;NSolutions[ <Equation> ] | ;NSolutions[ <Equation> ] | ||
:Finds a numeric solution for the given equation for the main variable. | :Finds a numeric solution for the given equation for the main variable. | ||
− | :{{example|1=<br><code><nowiki>NSolutions[cos(x) = x]</nowiki></code> yields ''{0.74}'' | + | :{{example|1=<br><code><nowiki>NSolutions[cos(x) = x]</nowiki></code> yields ''{0.74}'' or ''{0.739085133215165}'' (the number of decimals depends on the choosen in [[Options Menu#Rounding|global rounding]])}} |
;NSolutions[ <Equation>, <Variable> ] | ;NSolutions[ <Equation>, <Variable> ] | ||
:Finds numerically the list of solutions to the given equation for the given unknown variable. | :Finds numerically the list of solutions to the given equation for the given unknown variable. |
Revision as of 17:06, 9 December 2012
CAS Syntax
- NSolutions[ <Equation> ]
- Finds a numeric solution for the given equation for the main variable.
- Example:
NSolutions[cos(x) = x]
yields {0.74} or {0.739085133215165} (the number of decimals depends on the choosen in global rounding)
- NSolutions[ <Equation>, <Variable> ]
- Finds numerically the list of solutions to the given equation for the given unknown variable.
- Examples:
NSolutions[cos(x) = x, x= 0]
yields {0.74}NSolutions[a^4 + 34a^3 - 34, a]
yields the list {-34, 0.99}.
- Note: It is optional to give the starting point like a=3.
- NSolutions[ <Equation>, <Variable = starting value> ]
- Finds numerically the list of solutions to the given equation for the given unknown variable with its starting value.
- Example:
NSolutions[a^4 + 34a^3 - 34, a=3]
yields the list {-34, 0.99}.
- NSolutions[ <List of Equations>, <List of Variables> ]
- Finds numerically the list of solutions to the given set of equations for the given set of unknown variables.
- Example:
NSolutions[{π / x = cos(x - 2y), 2 y - π = sin(x)}, {x=3, y=1.5}]
yields the list {3.14, 1.57}
It is optional to give the starting point like {x=3, y=1.5}. |
- Note:
- π is obtaind by pressing Alt + p.
- See also Solutions Command and NSolve Command.