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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-float-load-solve-sqrt

/*PREGUNTA 1*/load(ve...

R:[0,510,280]-[480,0,...

S:[210,400,0]-[480,0,...

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-load-pi

load(vect);

load(eigen);

p_prev:[-12.34,72.56];

Calculate

acos-block-float-pi

cos737(a) := block([]...

float(cos(2e-4));

acos(0.99999997)*%pi;

Calculate

acos-sqrt

u:[1,5,0];

v:[-3,0,2];

w:[0,1,-1];

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-expand-float-matrix

u:matrix([-3.37535585...

v:matrix([-3.41400263...

w:matrix([1.25741968,...

Calculate

acos-sqrt

u:[2,1,0];

v:[3,-1,2];

w:[4,0,3];

Calculate

acos-sqrt

pe(x1,y1,z1,x2,y2,z2)...

Puv:pe(1,5,0,-3,0,2);

Pvw:pe(-3,0,2,0,1,-1);

Calculate

acos-sqrt

a2= acos (8/sqrt(5.0)...

Calculate