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The Maxima on-line user's manual

Algebra Calculator

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Acos

Function: acos (<x>) - Arc Cosine.

f(x):=taylor( x/tan(x) ,x , 0, 20);
g(x):=integrate(f(t),t,0,x);
h(x):=(%pi/2)*(1+x)-(0.1)*( (%pi/2)*(1+x)*log(cos(%pi*x/2))-g(%pi*(1+x)/2)+(1+x)*g(%pi/2));
e(x):= (1/2)*( h(x)-h(-x)+2*h(0) );
 plot2d ([acos(-x),acos(-x)-(0.2)*(2*x*(log(2))+(1-x)*(log(1-x))-(1+x)*(log(1+x)))/(2*sqrt(1-x^2)),acos(-x)-(0.4)*(2*x*(log(2))+(1-x)*(log(1-x))-(1+x)*(log(1+x)))/(2*sqrt(1-x^2)),acos(-x)-(0.6)*(2*x*(log(2))+(1-x)*(log(1-x))-(1+x)*(log(1+x)))/(2*sqrt(1-x^2)) , (%pi/2)*(1+x)], [x, -0.999, 0.999], [y,0,%pi]);

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

(%o1)                                true
(%i2) 

Related Examples

acos-sqrt

peu(x1,y1,z1,x2,y2,z2...

Puv:peu(2,1,-1,-1,4,2);

Pvw:peu(-1,4,2,2,-1,3);

Calculate

acos-float-matrix-phi-pi-plot2d-ratsimp-sin-sqrt-trigsimp
plot2d(polsangle(45,theta),[theta,0,90]);

norm(x):= sqrt(x . x);

angle(x,y):=acos(x.y/...

Rz(phi):=matrix([cos(...

Calculate

acos-expand-float-linsolve-matrix-sqrt

u:matrix([-4.10905616...

v:matrix([-1.72180528...

w:matrix([4.00658351,...

Calculate

acos-apply-numer-pi-sqrt

peb(x1,y1,z1,x2,y2,z2...

u:[1,5,0];

v:[-3,0,2];

Calculate

acos-cos-float-pi

float(cos(0.9999*%pi));

(acos(-0.99999994)/%pi);

Calculate

acos-beta-float-load-sqrt

load(vect);

R:[42,0,0]-[0,0,32];

S:[-42,24,0]-[0,0,32];

Calculate

acos

t:acos(0.05/0.124)/85...

a:-(85.907)^2*0.124*c...

Calculate

acos-asin-atan2-expand-float-linsolve-matrix-pi-rhs-sqrt

S1 : matrix([4.088894...

S2 : matrix([3.249530...

S3 : matrix([-3.75759...

Calculate

acos-float-pi

cos_flat(a,b,c):=acos...

float(cos_flat(152558...

float(cos_flat(17886....

Calculate

acos-cos-sqrt

acos((inprod((3,2),(0...

Calculate