Úvod do symbolov v HTML
Symboly, ktoré sa majú použiť v HTML, sú jednou z najdôležitejších častí vývoja webových aplikácií alebo procesu vývoja aplikácií. V HTML sa používajú rôzne typy symbolov, napríklad matematické, fyzikálne, technické a menové symboly. Ak chcete použiť množinu týchto druhov symbolov pri vývoji webovej stránky, použite názov entity HTML.
Ak nie je k dispozícii žiadny názov entity, môžu sa v HTML použiť symboly s číslom entity, ktoré je vo forme desatinného alebo hexadecimálneho čísla. Zahŕňa matematické operátory, šípy, tvary a niektoré technické symboly, ktoré nie sú dostupné na klávesnici.
Zoznam symbolov v HTML
V HTML sa používa viacero symbolov pomocou názvu entity alebo čísla entity, poďme vidieť jeden po druhom:
| znak | číslo | bytosť | Opis / vysvetlenie | príklad |
| ∀ | ∀ | ∀ | Používa sa pre všetkých. |
Symbol zobrazujúci všetok obsah pomocou ∀ |
| ∂ | ∂ | ∂ | Používa sa na zobrazenie čiastočného rozdielu. |
Symbol zobrazujúci všetok čiastočný rozdiel ∂ |
| ∃ | ∃ | ∃ | Používa sa na zobrazenie tam existujú. |
Symbol zobrazujúci všetok existujúci obsah pomocou ∃ |
| ∅ | ∅ | ∅ | tento symbol sa používa na zobrazenie prázdnych množín. |
Symbol zobrazujúci prázdnu súpravu ∅ |
| ∈ | ∈ | ∈ | Používa sa na preukázanie prítomnosti prvkov |
Symbol zobrazujúci prvky ∈ |
| ∉ | ∉ | ∉ | Ukazuje, že nejde o prvok |
Symbol, ktorý nie je prvkom ∉ |
| ∋ | ∋ | ∋ | Tento symbol sa používa na označenie, že obsahuje člena. |
Symbol zobrazuje OBSAH AKO ČLEN ∋ |
| Π | Π | Π | Tento symbol sa používa na zobrazenie produktov N-ARY. |
Symbol zobrazujúci produkt N-ARY ∏ |
| Σ | Σ | Σ | Tento symbol sa používa na zobrazenie N-ARY SUMMATION |
Symbol zobrazujúci N-ARY SUMMATION ∑ |
| ∇ | ∇ | ∇ | Používa sa na zobrazenie NABLA |
Symbol zobrazujúci NABLA ∇ |
| © | © | © | Tento symbol sa používa na zobrazenie copywritov na konkrétnom dokumente. |
Copywrite značka zobrazená pomocou © |
| ® | ® | ® | Tieto symboly vám pomôžu zobraziť zaregistrovaný znak. |
Registrovaný znak sa zobrazuje pomocou symbolu ® |
| € | € | € | Týmto symbolom sa zobrazuje euro. |
Znak EURO sa zobrazuje v € |
| ™ | ₾ | ™ | Pomocou tohto kódu sa zobrazuje symbol ochrannej známky. |
Symbol ochrannej známky pomocou ₾ |
| ← | ← | ← | Tento symbol sa používa na zobrazenie šípky doľava. |
ŠÍPKA VĽAVO pomocou ← |
| → | → | & rarr; | Tento symbol sa používa na zobrazenie šípky doprava. |
ŠÍPKA VPRAVO pomocou → |
| ↑ | ↑ | ↑ | Tento symbol sa používa na zobrazenie šípky nahor. |
ŠÍPKA NAHOR pomocou ↑ |
| ↓ | ↓ | ↓ | Tento symbol sa používa na zobrazenie šípky nahor. |
ŠÍPKA DOWNWARDS pomocou ↓ |
| ♠ | ♠ | ♠ | Tento symbol zobrazuje oblek Black Spade. |
Symbol pre BLACK SPADE SUIT ♠ |
| ♣ | ♣ | ♣ | Tento symbol ukazuje oblek Black club. |
Symbol pre BLACK CLUB SUIT ♣ |
| ♥ | ♥ | ♥ | Tento symbol zobrazuje oblek Blackheart. |
Symbol pre BLACK HEART SUIT ♥ |
| ♦ | ♦ | ♦ | Tento symbol zobrazuje oblek Black Diamond. |
Symbol pre BLACK DIAMOND SUIT ♦ |
| ° | ° | ° | Tento symbol predstavuje znamenie stupňa. |
Symbol ukazujúci stupeň ° |
| ± | ± | ± | Označuje znamienko plus mínus spolu. |
Symbol ukazujúci znak ± |
| μ | μ | μ | Tento symbol sa používa na zobrazenie mikro. |
zobrazí sa symbol mikro |
| ¶ | & # 182 | ¶ | Pomocou tohto symbolu sa zobrazuje odsek. |
Odsek sa zobrazuje pomocou & # 182 |
| ¿ | ¿ | ¿ | Invertovaný otáznik zobrazujúci tento symbol. |
INVERTED otáznik ¿ |
| × | × | × | Násobenie znamenia pomocou tohto symbolu. |
Matematické násobenie znamienko × |
| ÷ | ÷ | ÷ | Symbol matematického delenia používajúci túto hodnotu. |
Činnosť delenia sa vykonáva symbolom ÷ |
| ¼ | ¼ | ¼ | ¼ časť je možné zobraziť pomocou tohto symbolu. |
Štvrtú časť je možné zobraziť pomocou symbolu ¼ |
| ½ | ½ | ½ | ½ diel je možné zobraziť pomocou tohto symbolu. |
Polovicu možno zobraziť pomocou symbolu ½ |
| ¾ | ¾ | ¾ | ¾ tretí diel je možné zobraziť pomocou tohto symbolu. |
Tri štvrté časti je možné zobraziť pomocou symbolu ¾ |
Príklady
Ďalej uvádzame niekoľko príkladov symbolov HTML:
Príklad č. 1
Symboly HTML pre matematické operácie.
HTML kód:
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Výkon:
Príklad č. 2
V tomto príklade sa zobrazia niektoré špeciálne symboly HTML:
HTML kód :
Some special HTML symbols
Some special HTML symbols
Some special HTML symbols
Some special HTML symbols
© všetky práva sú vyhradené
Je to do EDUBCA
Je to európska mena, ktorá sa zobrazuje v eurách
EDUBCA ™
Micro Symbol u
Symbol NABLA ∇
Odsek sa zobrazuje pomocou ¶
Výkon:
Príklad č. 3
Príklad ukazujúci šípky a iné symboly:
HTML kód:
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
ŠÍPKA VĽAVY ←
ŠÍPKA VPRAVO →
ŠÍPKA NAHORU ↑
ŠÍPKA NA STIAHNUTIE ↓
ČIERNY SPADE SUIT ♠
BLACK CLUB SUIT ♣
BLACK HEART SUIT ♥
BLACK DIAMOND SUIT ♦
Výkon:
záver
Tieto je možné zadať pomocou názvu entity alebo hodnoty entity. Existuje viac symbolov, ako sú matematické operátory, šípky, technické symboly a tvar, gréčtina, niektoré ďalšie špeciálne symboly, ktoré sú uvedené vyššie s príkladom.
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