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solve/scalar

solve a scalar case (a single variable and equation)

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

solve(eqn, var)

Parameters

eqn

-

algebraic expression (to be equated to 0), or an equation, or a set or list containing a single expression

var

-

(optional) name, or list containing a single name

Description

• 

The solve function with a single equation and a single variable uses the scalar solver. When called with a single argument, it is equivalent to solve(eqn, indets(eqn, name)).

• 

The scalar solver reports all solutions found, even if some roots are multiple roots. For polynomials, the scalar solver finds all solutions.

• 

For polynomials of degree 2, 3, and 4, the scalar solver computes the explicit solutions. For irreducible and non-decomposable polynomials of degree higher than 4, the scalar solver returns the solutions using RootOf notation.

• 

For information on the return values of the solve command, see solve/details.

Examples

solvecosx+y=9,x

πarccosy9

(1)

solvex36x2+11x6,x

1,2,3

(2)

solvex36x2+11x6,x

x=1,x=2,x=3

(3)

See Also

solve

solve/details

solve/float

solve/identity

solve/radical

 


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