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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.

a:7;
b:8;
float(sqrt(a^2+b^2));
f(x):=x^2-x+1;
f(3);
f(a);
f(b);
log10(x):=log(x)/log(10);
float(log10(3));
(30!);

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

(%o1)                                true
(%i2) 

Related Examples

float-fpprec-numer

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

r12brojno: r12, r1=10...

r12brojno, numer;

Calculate

float-log

float(log((1/2)/(a*1....

Calculate

float-numer-sin-subst-taylor

f:taylor(sin(%pi/6+x));

f1:subst(x=%pi/24,f);

v:float(f1),numer;

Calculate

float-log-plot3d
plot3d(t*1000,[R2,0,4700],[R1,0,4700],[z,1,2],[elevation, 70], [azimuth, 0],[grid,100,100]);

x:2000;

y:0;

v:1800;

Calculate

float-solve

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

eq2:3*3600/2/a*2.33*t...

float(solve([eq1,eq2]...

Calculate

float-invert-matrix

A:matrix([15,-2,-1], ...

b:matrix([3800],[1200...

float(invert(A).b);

Calculate

float

float((10+2*4-6^2)/37...

Calculate

float

f : ((5/12)/(7/8));

float(f);

Calculate

float-linsolve-plot2d
plot2d(f(t),[t,10*10^-6,0.001]);

eq1:I=50-((t-10*10^-6...

eq2:I=1;

linsolve([eq1,eq2],[I...

Calculate

float-sum

n:10;

s(m):=sum(m/i,i,1,m);

float(s(n));

Calculate