replace(ZZ,Thing,VisibleList) -- copy a list, replacing an element

Synopsis

Function: replace
Usage:

s = replace(i, t, l)
Inputs:
- i, an integer,
- t, a thing,
- l, a visible list,
Outputs:
- s, a visible list, a copy of the list l in which t has replaced the element at position i.

A negative value of i is taken relative to the end of the list.

i1 : replace(4,   t, 0..10)

o1 = (0, 1, 2, 3, t, 5, 6, 7, 8, 9, 10)

o1 : Sequence

i2 : replace(0,   t, 0..10)

o2 = (t, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

o2 : Sequence

i3 : replace(10,  t, 0..10)

o3 = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, t)

o3 : Sequence

i4 : replace(-1,  t, 0..10)

o4 = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, t)

o4 : Sequence

i5 : replace(-11, t, 0..10)

o5 = (t, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

o5 : Sequence