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The Maxima on-line user's manual

Algebra Calculator

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Algexact

-- Option variable: algexact Default value: false

algexact affects the behavior of algsys as follows:

algexact:false;
find_root(7200*x*(x^6-1)/(x-1)=45703.26,x,0,10);

If algexact is true, algsys always calls solve and then uses realroots on solves failures.

If algexact is false, solve is called only if the eliminant was not univariate, or if it was a quadratic or biquadratic.

Thus algexact: true doesnt guarantee only exact solutions, just that algsys will first try as hard as it can to give exact solutions, and only yield approximations when all else fails.

(%o1)                                true
(%i2) 

Related Examples

algexact-algsys-false

algexact:false;

eq1:eps^3+a*eps^2+b=0;

alpha=60;

Calculate

algexact-algsys-false

algexact:false;

alpha=15;

a=0.679490067;

Calculate

algexact-algsys-false

algexact:false;

alpha=15;

a=0.679490067;

Calculate

algexact-algsys-false

algexact:false;

eq1:eps^3+a*eps^2+b=0;

alpha=30;

Calculate

algexact-algsys-false

algexact:false;

alpha=15;

a=0.679490067;

Calculate

algexact-algsys-false

algexact:false;

eq1:eps^3+a*eps^2+b=0;

alpha=45;

Calculate

algexact-algsys-cos-false-sin-true

algexact:true;

algsys([x^3+(cos(%pi/...

algexact:false;

Calculate

algexact-algsys-false

algexact:false;

algsys([x^3+1,3589801...

Calculate

algexact-algsys-false

algexact:false;

eq1:eps^3+a*eps^2+b=0;

alpha=60;

Calculate

algexact-algsys-cos-false-sin-true

algexact:true;

algsys([x^3+(cos(%pi/...

algexact:false;

Calculate