/usr/share/axiom-20170501/input/liu.input is in axiom-test 20170501-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | )set break resume
)spool liu.output
)set message test on
)set message auto off
)set message type off
)clear all
--S 1 of 9
Dx: LODO(EXPR INT, f+->D(f,x)) := D()
--R
--R (1) D
--E 1
--S 2 of 9
u := operator 'u
--R
--R (2) u
--E 2
--S 3 of 9
L := Dx + u(x)
--R
--R (3) D + u(x)
--E 3
--S 4 of 9
L**2 = L*L
--R
--R 2 2 2 , 2
--R (4) D + 2u(x)D + u(x) = D + 2u(x)D + u (x) + u(x)
--R
--E 4
)clear all
--S 5 of 9
f: INT->INT:=x+->x+1
--R
--R (1) theMap(Closure)
--E 5
--S 6 of 9
K := OREUP ( x, INT, 1, f);
--R
--E 6
--S 7 of 9
x:K
--E 7
--S 8 of 9
L:=x+1
--R
--R (4) x + 1
--E 8
--S 9 of 9
L^2=L*L
--R
--R 2 2
--R (5) x + 2x + 1= x + 4x + 3
--E 9
)spool
)lisp (bye)
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