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The Maxima on-line user's manual

Algebra Calculator

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Float

Function: float (<expr>) Converts integers, rational numbers and bigfloats in <expr> to floating point numbers. It is also an evflag, float causes non-integral rational numbers and bigfloat numbers to be converted to floating point.

define(fp(x), 3*x^2 - 4*x);
float(realroots(fp(x)=0));
fp(-1);
fp(1);
fp(5);

There are also some inexact matches for float. Try ?? float to see them.

(%o1)                                true
(%i2) 

Related Examples

float-solve

float(solve((x/2)^2*%...

Calculate

float-linsolve

eq1: Ay +TAh/2 - (Dy ...

eq1a: Ay = -Dy;

eq1b: Ay-TAh/2 - (Dy ...

Calculate

float-linsolve

float(linsolve([W=Pm*...

float(Pst=Pm*Tst/Tm*(...

Calculate

float

f(x):=2*x/(x+1);

f(2);

float(f(f(2)));

Calculate

float

float((2e-4*30)/(%pi*...

Calculate

float-solve

soln:solve( x^3-4*x^2...

float(soln);

Calculate

float-invert-matrix

A:matrix([6,0,1,0,0],...

b:matrix([50],[0],[16...

float(invert(A).b);

Calculate

float-sin-solve-sqrt

soln:solve( 6=sqrt(si...

float(soln);

Calculate

float-solve

eq1:3600*r*2*a+3600*(...

eq2:3*3600*y*a*2.33*t...

eq3:1/y/a=45;

Calculate

float-solve

par(a,b):=(a*b)/(a+b);

pd(t,b):=b/(t+b);

eq1:pd(1.5e6,par(Ra,1...

Calculate