Keyboard-Numpad-secret-wonders

Press Alt + numpad keys in sequence to get the following symbols

Alt + 382 = ~
Alt + 352 = `
Alt + 350 = ^
Alt + 254 = ¦
Alt + 253 = ² [Square sign]
Alt + 249 = ·
Alt + 246 = ÷
Alt + 241 = ±
Alt + 230 = µ
Alt + 225 = ß
Alt + 21 = §
Alt + 20 = ¶
Alt + 197 = +
Alt + 195 = +
Alt + 194 = -
Alt + 175 = »
Alt + 174 = «
Alt + 172 = ¼
Alt + 171 = ½
Alt + 170 = ¬
Alt + 168 = ¿
Alt + 166 = ª
Alt + 160 = á
Alt + 159 = ƒ
Alt + 156 = £ [Pound Sterling]
Alt + 155 = ¢ [cent sign]
Alt + 154 = Ü
Alt + 152 = ÿ
Alt + 15 = ¤
Alt + 146 = Æ
Alt + 145 = æ
Alt + 144 = É [Capitalised accent over E]
Alt + 142 = Ä
Alt + 137 = ë
Alt + 136 = ê
Alt + 135 = ç
Alt + 133 = à
Alt + 132 = ä
Alt + 130 = é [accent over e ]
Alt + 129 = ü
Alt + 0190 = ¾
Alt + 0179 = ³ [cubic sign]
Alt + 0176 = ° [degrees for Temperature]
Alt + 0174 = ® [Registered Trademark]
Alt + 0169 = © [Copyright]
Alt + 0165 = ¥ [Japanese Yen sign]
Alt + 0161 = ¡
Alt + 0153 = ™ [Trade Mark]
Alt + 0134 = † [dagger sign]
Alt + 0128 = € [Euro symbol]