Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
Wolfram`Lazy`
LazyExpression | |
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Details and Options
Examples
(1)
Basic Examples
(1)
In[1]:=
ClearLazyCache[]
Mutable reference dependency:
In[2]:=
x=
[1+2]y=3+xz=4+y
 | LazyExpression |
Out[2]=
Out[2]=
Out[2]=
Self-reference:
In[3]:=
ones=
[{1,Splice[ones]}]
| LazyExpression |
Out[3]=
In[4]:=
| Lazy |
Out[4]=
Built-in methods:
In[5]:=
range=
[Range][]
| Lazy |
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In[6]:=
range
Out[6]=
In[7]:=
| Lazy |
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In[8]:=
| Lazy |
Out[8]=
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Obligatory Fibonacci examples:
In[9]:=
fib=
0,1,Splice
[MapThread]Plus,fib,
[Rest][fib]
| LazyExpression |
| Lazy |
| Lazy |
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In[10]:=
next[{1,2}]
Out[10]=
In[11]:=
fib=
@
[FoldList][Plus,0,{1,Splice[fib]}]
| LazyExpression |
| Lazy |
Out[11]=
In[12]:=
| LazyExpression |
| Lazy |
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In[13]:=
fib=
0,1,Splice@
[Table,fib〚n-2〛+fib〚n-1〛,{n,3,Infinity}]
| LazyExpression |
| Lazy |
Out[13]=
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In[14]:=
ClearAll[fib]fib[1]=1;fib[2]=1;fib[n_Integer]:=fib[n]=
[fib[n-2]+fib[n-1]]
| LazyExpression |
In[15]:=
fibs=Table[fib[n],{n,10}]
Out[15]=
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In[16]:=
Scan[Print[HoldForm[Evaluate[fib[#]]]]&,Range[10]]
In[17]:=
f[x_?NumericQ]:=positiveRationals=
[NestList][f,0]rationals=
@
[MapThread]Splice@*List,positiveRationals,
[Map][Minus]@
[Rest]@positiveRationals
1
Floor[x]+1-FractionalPart[x]
| Lazy |
| LazyExpression |
| Lazy |
| Lazy |
| Lazy |
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