8 years, 71 days

## I'm surprised by the solution you gave...

@acer By simple computations :

eq1 represents a sphere S1 centered at (67, -400, 180) with radius sqrt(2042)
eq2 represents a sphere S2 centered at (467, -450, 185) with radius sqrt(133027)
eq3 represents a sphere S3 centered at (307, -675, 555) with radius sqrt(787948)

the distance between the centers of balls S1 and S3 is 273850
the one between the centers of balls S and S3 is 213125

each of these distances is less than the sum of the radii of the coresponding spheres.

So the sphere 3 does not intersect any of the others (a simple reasoning shows that are located inside the biggest one)

The system then has no solution at all.

How is it that Maple finds one ?

Did I do some mistake ?

M := 1100:
p1 := plots:-implicitplot3d(eq1,x=67-M..67+M,y=-400-M..-400+M,z=90-M..90+M,style=surface, color="Niagara Azure"):
p2 := plots:-implicitplot3d(eq2,x=67-M..67+M,y=-400-M..-400+M,z=90-M..90+M,style=surface, color="Gold"):
p3 := plots:-implicitplot3d(eq3,x=67-M..67+M,y=-400-M..-400+M,z=90-M..90+M,style=surface, color="Green"): plots:-display(p1,p2,p3);

## I use Maple 2015.2...

@Carl Love  I use the version 2015.2 ; the operating system is OS X el Capitan 10.11

@Carl Love

Option 1 (:-LinearAlgebra:-Transpose(A)) works perfectly.

Very useful are the variants of  with(...) you have given.

Option 2 : with(Maplets:-Examples, ({Maplets:-Examples:-_pexports()[]} minus {LinearAlgebra})[]);
used this way

restart:
with(Maplets:-Examples, ({Maplets:-Examples:-_pexports()[]} minus {LinearAlgebra})[]);
A := Matrix(2,2,[1,2,3,4]):
LinearAlgebra:-Transpose(A)

still returns

"Error, Transpose is not a command in the Maplets:-Examples:-LinearAlgebra package"

... probably something I didn't understand correctly  ?

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