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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

eq1:v/(r1+r2*r3/(r2+r...

eq2:i1=i2+i3;

eq3:i3*r3=i2*r2;

Calculate

float-solve

eq1: (24*1602/76)/11,...

eq2a: 1.28*10^(-11)=M...

eg2b: 6.81*10^(-13)=P...

Calculate

float-kill-sqrt

/* combining speeds *...

c: 1;

/* light sec. *//* L...

Calculate

float-pi-plot2d-solve
plot2d(f,[x,-5,5]);

f(x):=(x^3)+4;

g(x):=6+x;

f(-1);

Calculate

float-sum

float(sum(130!/(i!*(1...

Calculate

float

r1: 10*ohm;

r2: 20*ohm;

r12: 1/(1/(r1)+1/(r2));

Calculate

float

r1: 10*ohm;

r2: 20*ohm;

r12: 1/(1/r1 + 1/r2);

Calculate

float-pi

C:470E-3;

omega:50*2*%pi;

Zc:1/(omega*C);

Calculate

float-solve

eq1:Pst/560+Pa/290=1/...

eq2:Pst+Pa=1;

eq3:nst=Pst*30/82.057...

Calculate

float-solve

eq1: (24*1602/76)/11,...

eq2a: 1.28*10^(-11)=M...

eg2b: 6.81*10^(-13)=P...

Calculate