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/set approximation exact
/set fr 2
x + 3 = 0
x = -3
-x^2 + 3x = 1
x = (sqrt(5) + 3) / 2 or x = 3/2 - sqrt(5) / 2
x^3-5x^2-4x+20=0
x = 5 or x = 2 or x = -2
2x^3 + 5x -5x^2 + 21 = 9x + x^3 + 1
x = 5 or x = 2 or x = -2
x*(2x^2 + 5 -5x) + 21 = 9x + x^3 +1
x = 5 or x = 2 or x = -2
coeff(3x + 4, 0)
4
coeff(3y + 4, 1)
3
coeff(3a + 4, 2)
0
coeff(4x*(2x^2 + 5 -5x), 3)
8
coeff(x^3-7x^2-4x-5x^2, 2)
-12
coeff(1+x^3-4x-5x^2-1, 0)
0
coeff(3x + 4, 1, x)
3
coeff(3x + 4, 1, y)
0
coeff(3x + 2y + 4, 1, y)
2
pcontent(3x + 6)
3
pcontent(2x^3-4x^2-6x-8x^2)
2
pcontent(2y^3-3y^2-6y-8y^2)
1
pcontent(2x^3-3x^2-6x-8x^2, y)
2x^3 - 11x^2 - 6x
lcoeff(6+ 3x)
3
lcoeff(6 -5x^2 + 3x^2)
-2
lcoeff(6 -5x^2 + 3x^2, y)
6 - 2x^2
lcoeff(6 -5x^2 + 3x^2 + 2y, y)
2
ldegree(3x)
1
ldegree(6 -5x^2 - 6)
2
ldegree(-5x^2, y)
0
ldegree(3yx^2 + 2y, y)
1
degree(3x + 6)
1
degree(2x^3-4x^2-6x-8x^2)
3
degree(2x^3-3x^2-6x-2x^3)
2
degree(2x^3-3x^2-6x-2x^3, y)
0
primpart(3x + 6)
x + 2
primpart(-12x^3 + 30x - 20)
6x^3 - 15x + 10
primpart(2xy + 8y + 16, y)
(xy) / 2 + 2y + 4
tcoeff(6+ 3x)
6
tcoeff(-5x^2 + 3x - x)
2
tcoeff(6x -5x^2 + 3x^2, y)
6x - 2x^2
tcoeff(6 -5x^2 + 3x^2 + 2y, y)
6 - 2x^2
punit(-3x)
-1
punit(1-3x)
-1
punit(3x-1)
1
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