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Appendix B  Examples

Polynomials, rational functions:

coeff(X**3 + 3*X**2*Y + 3*X*Y**2 + Y**3,x);
reduce
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gcd(X**2 + 4*X + 3,X**2 - 2*X - 3);
reduce
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resultant(X**2 + 4*X + 3,X**2 - 2*X - 3,x);
reduce
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decompose(x**6+6x**4+x**3+9x**2+3x-5);
reduce
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factorize(x**6+6x**4+x**3+9x**2+3x);
reduce
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roots(x**6+6x**4+x**3+9x**2+3x-5);
reduce
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interpol({0,7,26,63},z,{1,2,3,4});
reduce
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partial fraction decomposition:

pf(2/((x+1)^2*(x+2)),x);
reduce
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Matrices:

m:=mat((1,x),(2,y));
reduce
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1/m;
reduce
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det m;
reduce
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Ordinary differential equations:

load odesolve;
odesolve(df(y(x),x)=y(x)+x**2+2,y(x),x);
*** y declared operator
reduce
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Linear system (hidden):

solve({(a*x+y)/(z-1)-3,y+b+z,x-y},
{x,y,z});
reduce
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Transcendental equations:

solve(a**(2*x)-3*a**x+2,x);
reduce
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Polynomial systems:

solve(
{ a*c1 - b*c1**2 - g*c1*c2 + e*c3,
-g*c1*c2 + (e+t)*c3 -k*c2,
g*c1*c2 + k*c2 - (e+t) * c3},
{c3,c2,c1});
reduce
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Structural analysis:

load_package compact;
compact(s*(1-(sin x**2))
+c*(1-(cos x)**2)
+(sin x)**2+(cos x)**2,
{cos x^2+sin x^2=1});
reduce
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Calculus:

df(exp(x**2)/x,x,2);
reduce
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int(x^3*exp(2x),x);
reduce
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limit(x*sin(1/x),x,infinity);
reduce
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Series:

on rounded;
taylor(sin(x+1),x,0,4);
reduce
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sum(n,n);
reduce
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prod(n/(n+2),n);
reduce
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Complex numbers:

w:=(x+3*i)**2;
reduce
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Rounded numbers:

precision 25;
reduce
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pi**2;
reduce
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Modular numbers:

on modular;
*** Domain mode rounded changed to modular 
setmod 17;
reduce
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(x-1)**2;
reduce
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factorize ws;
reduce
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