Racket Libraries
5.1 双 and 􏿴
5.2 􏻿
5.3 􏿰
5.4 􏶃
5.5 􏷂
5.6 􏶿
5.7 
5.8 
5.9 􏺃
5.10 
5.11 Conditionals
5.12 
5.13 
On this page:
5.2.1 Overall
5.2.2 􏻿 􏻽 􏻼, 􏻿? 􏻽? 􏻼?, 􏻸?
5.2.3 􏻺 􏻻 􏻹
5.2.4 􏻿巨, 􏻿弔, 􏻿𠆯 􏻿􏽒
5.2.5 􏻼化, 􏻿化􏿴 􏿴化􏻿 􏻿􏾝化並
5.2.6 􏻿􏾺 􏻿􏷵 􏻿􏸄 􏻿􏾝
5.2.7 􏻿弓, 􏻿􏷑 􏻿􏷉, 􏻿􏹈 􏻿􏹇
5.2.8 􏻿􏾩 􏻿𢪛, 􏻺𰅡, 􏻿𢪛/  以􏾝
5.2.9 ming/  racket/  base
􏻿
􏻿?
􏻺
􏻼
􏻿巨
􏻿弔
􏻿􏾩
􏻿化􏿴
􏿴化􏻿
􏻼化
􏻺𰅡
􏻿𢪛/  以􏾝
􏻿􏾝化並
􏻻
5.2.10 ming/  racket/  vector
􏻸?
􏻿𢪛
􏻿􏷑
􏻿􏷉
􏻹
􏻿􏾺
􏻿𨚞
􏻿􏷵
􏻿􏷴
􏻿􏸄
􏻿􏸃
􏻿􏾝
􏻿􏹈
􏻿􏹇
􏻿􏹈巨
􏻿􏷑􏺗
􏻿􏷑􏺘
􏻿弓
􏻿弓/  
􏻿弓/  􏷅
􏻿𠆯
􏻿􏽒
8.16

5.2 􏻿🔗

Originates from Vectors and extends to 􏻿.

5.2.1 Overall🔗

Rule

Example

 􏻿􏷑 􏻿𠆯 􏻿􏹈

 􏻿􏾺 􏻿𨚞

􏻿􏷵 􏻿􏷴

 􏻿􏾩 􏻿𢪛 􏻿􏽒

􏻿PFX

􏻿𠆯 􏻿􏷴 􏻿􏾩 􏻿􏽒

ideograph

  connotation : something has specific direction or fixed length
  originates from :
  originally means : arrow
矢LB : + LB
ideograph

  connotation : something similar to vector
Examples: 􏻿

5.2.2 􏻿 􏻽 􏻼, 􏻿? 􏻽? 􏻼?, 􏻸?🔗

􏻿 : 矢LB +
ideograph

  connotation : vector, introduce a vector data type
here specifically means a few of fixed length of elements.
􏻿B 
ideographs
􏻿BR 
ideographs

   : 􏻿 + B / BR
  connotation : vector resemblance
Examples: 􏻸 􏻼 􏻺 􏻻 􏻹

􏻿PFX : 􏻿 + PFX
ideograph

  connotation : process vector
Implies the type of input data is 􏻿, and how to process this data thus the output are both denpending on the suffix.

Examples:  􏻿巨 􏻿弔 􏻿弔.

􏻼 
ideographs
􏻽 
ideographs

   : 𭕄 / + 􏻿BR
  connotation : immutable or mutable vector
􏻸 : + 􏻿B
ideograph

  connotation : empty vector

Examples:
> (􏻽 1 2 3 4)

'#(1 2 3 4)

> (􏻽? (􏻽 1 2 3 4))

#t

> (􏻼 1 2 3 4)

'#(1 2 3 4)

> (􏻼? (􏻼 1 2 3 4))

#t

> (􏻽? (􏻿 1 2 3 4))

#t

> (􏻼? '#(1 2 3 4))

#t

> (􏻿? (􏻿 1 2 3 4))

#t

> (􏻿? (􏻽 1 2 3 4))

#t

> (􏻿? (􏻼 1 2 3 4))

#t

> (􏻸? (􏻿))

#t

> (􏻸? #())

#t

5.2.3 􏻺 􏻻 􏻹🔗

🐘 􏼓 􏼎 􏿝

􏻺 
ideographs
􏻻 
ideographs
􏻹 
ideographs

   : / / + 􏻿BR

Examples:
> (􏻺 5 'foo)

'#(foo foo foo foo foo)

> (􏻻 5 􏽊)

'#(1 2 3 4 5)

> (􏻹 '#(1) '#(2) '#(3) '#(4))

'#(1 2 3 4)

5.2.4 􏻿巨, 􏻿弔, 􏻿𠆯 􏻿􏽒🔗

🐘  𠆯

Examples:
> (􏻿巨 '#(1 2 3 4))

4

> (􏻿弔 '#(a b c d) 2)

'c

> (􏻿𠆯 '#(1 222 35 4) <)

'#(1 4 35 222)

> (􏻿􏽒 (􏻿 1 222 35 4) <)

5.2.5 􏻼化, 􏻿化􏿴 􏿴化􏻿 􏻿􏾝化並🔗

🐘 􏻼 􏻿􏾝

Examples:
> (􏻼化 '#(a b c d))

'#(a b c d)

> (􏿴化􏻿 '(a b c d))

'#(a b c d)

> (􏻿化􏿴 '#(a b c d))

'(a b c d)

> (􏻿􏾝化並 '#(a b c d) 0 2)

'a

'b

5.2.6 􏻿􏾺 􏻿􏷵 􏻿􏸄 􏻿􏾝🔗

🐘 􏾺 􏸄 􏾝

Examples:
> (􏻿􏾺 '#(a b c d e f) 2)

'#(a b)

> (􏻿􏷵 '#(a b c d e f) 2)

'#(c d e f)

> (􏻿􏸄 '#(a b c d e f) 2)

'#(a b)

'#(c d e f)

> (􏻿􏾝 '#(a b c d e f) 0 2)

'#(a b)

5.2.7 􏻿弓, 􏻿􏷑 􏻿􏷉, 􏻿􏹈 􏻿􏹇🔗

🐘  􏷑 􏹇

Examples:
> (􏻿弓 'c '#(a b 1 c 2 d 3 e))

3

> (􏻿􏷑 􏽊 '#(1 2 3 4))

'#(2 3 4 5)

> (􏻿􏹈 􏻛? '#(1 2 -3 4))

'#(1 2 4)

> (􏻿􏹇 􏻛? '#(1 2 -3 4))

'#(-3)

> ( vec (􏻿 1 2 3 4))
> (􏻿􏷉 􏽊 vec)

'#(2 3 4 5)

> vec

'#(2 3 4 5)

5.2.8 􏻿􏾩 􏻿𢪛, 􏻺𰅡, 􏻿𢪛/以􏾝🔗

🐘 􏾝

🐘 􏻿􏾝

Examples:
> ( vec (􏻿 'a 'b 'c 'd))
> vec

'#(a b c d)

> (􏻿􏾩 vec 1 'x)
> vec

'#(a x c d)

> (􏻿𢪛 vec 1 'h 2 'i 3 'j)
> vec

'#(a h i j)

> (􏻺𰅡 vec 'z)
> vec

'#(z z z z)

> (􏻿𢪛/以􏾝 vec 0 '#(aa bb cc dd) 1 3)
> vec

'#(bb cc z z)

5.2.9 ming/racket/base🔗

transformer

􏻿 : 􏻿PFX = vector

transformer

􏻿? : 􏻿PFX + ?SFX = vector?

transformer

􏻺 : 􏻺 = make-vector

transformer

􏻼 : 􏻼 = vector-immutable

transformer

􏻿巨 : 􏻿PFX +  = vector-length

transformer

􏻿弔 : 􏻿PFX +  = vector-ref

transformer

􏻿􏾩 : 􏻿PFX + 􏾩 = vector-set!

transformer

􏻿化􏿴 : 􏻿 + 化IFX + 􏿴 = vector->list

transformer

􏿴化􏻿 : 􏿴 + 化IFX + 􏻿 = list->vector

transformer

􏻼化 : 􏻼 + 化SFX = vector->immutable-vector

transformer

􏻺𰅡 : 􏻺 + 𰅡SFX = vector-fill!

transformer

􏻿𢪛/以􏾝 : 􏻿PFX + 𢪛 + / + + 􏾝 = vector-copy!

transformer

􏻿􏾝化並 : 􏻿PFX + 􏾝 + +  = vector->values

transformer

􏻻 : 􏻻 = build-vector

5.2.10 ming/racket/vector🔗

transformer

􏻸? : 􏻸 + ?SFX = vector-empty?

transformer

􏻿𢪛 : 􏻿PFX + 𢪛 = vector-set*!

transformer

􏻿􏷑 : 􏻿PFX + 􏷑 = vector-map

transformer

􏻿􏷉 : 􏻿PFX + 􏷉 = vector-map!

transformer

􏻹 : 􏻹 = vector-append

transformer

􏻿􏾺 : 􏻿PFX + 􏾺 = vector-take

transformer

􏻿𨚞 : 􏻿PFX + 𨚞 = vector-take-right

transformer

􏻿􏷵 : 􏻿PFX + 􏷵 = vector-drop

transformer

􏻿􏷴 : 􏻿PFX + 􏷴 = vector-drop-right

transformer

􏻿􏸄 : 􏻿PFX + 􏸄 = vector-split-at

transformer

􏻿􏸃 : 􏻿PFX + 􏸃 = vector-split-at-right

transformer

􏻿􏾝 : 􏻿PFX + 􏾝 = vector-copy

transformer

􏻿􏹈 : 􏻿PFX + 􏹈 = vector-filter

transformer

􏻿􏹇 : 􏻿PFX + 􏹇 = vector-filter-not

transformer

􏻿􏹈巨 : 􏻿PFX + 􏹈 +  = vector-count

transformer

􏻿􏷑􏺗 : 􏻿PFX + 􏷑 + 􏺗 = vector-argmin

transformer

􏻿􏷑􏺘 : 􏻿PFX + 􏷑 + 􏺘 = vector-argmax

transformer

􏻿弓 : 􏻿PFX +  = vector-member

transformer

􏻿弓/冃 : 􏻿PFX + + / +  = vector-memv

transformer

􏻿弓/􏷅 : 􏻿PFX + + / + 􏷅 = vector-memq

transformer

􏻿𠆯 : 􏻿PFX + 𠆯 = vector-sort

transformer

􏻿􏽒 : 􏻿PFX + 􏽒 = vector-sort!