Difference between revisions of "NSolutions Command"

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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}'' (or ''{0.739085133215165}'')}}
+
:{{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 16:06, 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}
Note:
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