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The Maxima on-line user's manual

Algebra Calculator

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Abs

Function: abs (<expr>) Returns the absolute value <expr>. If <expr> is complex, returns the complex modulus of <expr>.

solve(-18*x^2-50=600*x)[1];
solve(-18*x^2-50=600*x)[2];
xvals: map(rhs,solve(-18*x^2-50=600*x));
yvals: map(lhs,solve(-18*x^2-50=600*x));
yvals[1] - xvals[1];
for i:1 while i<=(length(realroots(-18*x^2-50=600*x))) do (mye:yvals[i] - xvals[i],a:if(is(ratsimp(abs(mye-0)<= 0))) then return (100));
a;

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

(%o1)                                true
(%i2) 

Related Examples

abs-inf-limit

limit (abs((ln(n)+(-1...

Calculate

abs-atan-ceiling-cos-float-is-log-max-numer-round-sqrt-tan

g : 9.81;

deg : %pi/180;

test(x,y,z) := is(abs...

Calculate

abs-draw-draw3d-load-max
 draw3d(xu_grid=100, yv_grid=10, surface_hide=true,   palette=gray, enhanced3d=[x - z - y, x, y, z],   implicit(max(abs(x / 4), abs(y / 6), abs(z / 8)) = 1,   x,-10,10,y,-10,10,z,-10,10));

load(draw);

draw3d(xu_grid=100, ...

Calculate

abs-define-float-realroots

define(f(x), (x^4 + 3...

define(g(x), abs(4*x/...

r: realroots(f(x));

Calculate

abs-atan-carg-realpart

W:((1.25+(%i*w))/(2*(...

abs: abs(W);

theta: atan(carg(W)/r...

Calculate

abs-cos-plot2d-sin
plot2d([f(x),L(x),roots],[x,0,2*%pi],[style,lines,lines,points],[legend,"f(x)","L(x)",""]);

f(x):=cos(3*x)+sin(x)...

roots:[discrete,[[0.0...

L(x):=-0.014541721109...

Calculate

abs-ev-eval-plot2d-sin
plot2d(H(f,25,3), [f, 0, 0.2]);

log10(x):=log(x)/log(...

H(f,d,m):=log10(abs(e...

plot2d(H(f,25,3), [f,...

Calculate

abs-linsolve-log-plot2d-rhs
plot2d([db(rhs(eq7[1])),db(rhs(eq7[2])),db(rhs(eq7[3])),db(rhs(eq7[4])),db(rhs(eq7[5]))],[f,8000,30000],[logx]);

I(i):=-i/(s*R*C);

eq1: Vhp=Vin+Vlp+d*(V...

eq2: Vbp1=I(Vhp);

Calculate

abs-diff-ev

g(x,y,u,v):=4*%pi^2*[...

a: diff(g(x,y,u,v),x);

b: diff(g(x,y,u,v),y);

Calculate