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My Mathematica version : 8.0.4, windows 7


1d
revised Help with building matrices
edited body
1d
revised Help with building matrices
added 139 characters in body
1d
revised Help with building matrices
deleted 3 characters in body
1d
revised Help with building matrices
edited body
1d
answered Help with building matrices
Dec
10
comment Water Hammer - Numerically solving system of PDEs
@belisarius I have added a plot of the velocity.
Dec
10
revised Water Hammer - Numerically solving system of PDEs
added 114 characters in body
Dec
10
comment Water Hammer - Numerically solving system of PDEs
@belisarius This is precisely what happens : when you move the cursor you see that the wave is vanishing.
Dec
10
comment Water Hammer - Numerically solving system of PDEs
@belisarius This is consistent with the simulation above. At the end of the line (x=L) there is a oscillation. The caracteristics of the oscillation depend of the length of the line.
Dec
10
revised Water Hammer - Numerically solving system of PDEs
added 308 characters in body
Dec
10
revised Water Hammer - Numerically solving system of PDEs
added 308 characters in body
Dec
10
revised Water Hammer - Numerically solving system of PDEs
added 85 characters in body
Dec
10
answered Water Hammer - Numerically solving system of PDEs
Dec
4
comment Insert at specific resulting positions?
What would be the result of myInsert[list0,{a,x},{4,1}], {x,1,2,a,3,4,5} or {x,1,2,3,a,4,5} ?
Dec
2
answered New nested list from three lists
Dec
2
revised Trouble with Position[]
improved formatting
Dec
2
revised Trouble with Position[]
added 16 characters in body
Dec
2
revised Trouble with Position[]
new explanations
Dec
2
comment Trouble with Position[]
By convention in Mathematica, the Head of a expression exp is exp[[0]]
Dec
2
answered Trouble with Position[]