"char" is used to convert numbers and cells to character arrays, i.e. strings. It uses the standard ASCII codes. Matlab R12.1 on Windows gives the following output for this code:

Code

for i = -1:257
    disp([num2str(i) ': ' char(i)])
end

Output

Warning: Out of range or non-integer values truncated during conversion from double to character.

 -1:  
 0:  
 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: 0
 49: 1
 50: 2
 51: 3
 52: 4
 53: 5
 54: 6
 55: 7
 56: 8
 57: 9
 58: :
 59: ;
 60: <
 61: =
 62: >
 63: ?
 64: @
 65: A
 66: B
 67: C
 68: D
 69: E
 70: F
 71: G
 72: H
 73: I
 74: J
 75: K
 76: L
 77: M
 78: N
 79: O
 80: P
 81: Q
 82: R
 83: S
 84: T
 85: U
 86: V
 87: W
 88: X
 89: Y
 90: Z
 91: [
 92: \
 93: ]
 94: ^
 95: _
 96: `
 97: a
 98: b
 99: c
 100: d
 101: e
 102: f
 103: g
 104: h
 105: i
 106: j
 107: k
 108: l
 109: m
 110: n
 111: o
 112: p
 113: q
 114: r
 115: s
 116: t
 117: u
 118: v
 119: w
 120: x
 121: y
 122: z
 123: {
 124: |
 125: }
 126: ~
 127: 
 128: €
 129: ?
 130: ‚
 131: ƒ
 132: „
 133: …
 134: †
 135: ‡
 136: ˆ
 137: ‰
 138: Š
 139: ‹
 140: Œ
 141: ?
 142: ?
 143: ?
 144: ?
 145: ‘
 146: ’
 147: “
 148: ”
 149: •
 150: –
 151: —
 152: ˜
 153: ™
 154: š
 155: ›

 156: œ
 157: ?
 158: ?
 159: Ÿ
 160:  
 161: ¡
 162: ¢
 163: £
 164: ¤
 165: ¥
 166: ¦
 167: §
 168: ¨
 169: ©
 170: ª
 171: «
 172: ¬
 173: ­
 174: ®
 175: ¯
 176: °
 177: ±
 178: ²
 179: ³
 180: ´
 181: µ
 182: ¶
 183: ·
 184: ¸
 185: ¹
 186: º
 187: »
 188: ¼
 189: ½
 190: ¾
 191: ¿
 192: À
 193: Á
 194: Â
 195: Ã
 196: Ä
 197: Å
 198: Æ
 199: Ç
 200: È
 201: É
 202: Ê
 203: Ë
 204: Ì
 205: Í
 206: Î
 207: Ï
 208: Ð
 209: Ñ
 210: Ò
 211: Ó
 212: Ô
 213: Õ
 214: Ö
 215: ×
 216: Ø
 217: Ù
 218: Ú
 219: Û
 220: Ü
 221: Ý
 222: Þ
 223: ß
 224: à
 225: á
 226: â
 227: ã
 228: ä
 229: å
 230: æ
 231: ç
 232: è
 233: é
 234: ê
 235: ë
 236: ì
 237: í
 238: î
 239: ï
 240: ð
 241: ñ
 242: ò
 243: ó
 244: ô
 245: õ
 246: ö
 247: ÷
 248: ø
 249: ù
 250: ú
 251: û
 252: ü
 253: ý
 254: þ
 255: ÿ
 256: 
 257: �

Category:Book:MATLAB Programming#char%20 @import ( reference ) '@wikimedia/codex-design-tokens/theme-wikimedia-ui.less';

@import ( reference ) '@wikimedia/codex/mixins/link.less';

.my-custom-link { .cdx-mixin-link(); }