Liczby całkowite to fundamentalny koncept matematyczny obejmujący liczby bez części... Show more
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Updated Mar 21, 2026
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Wszystkie liczby całkowite i symbole liczb całkowitych
Liczby całkowite - podstawowe informacje
Liczby całkowite to fundamentalny koncept w matematyce, obejmujący wszystkie liczby, które można zapisać bez części ułamkowej. Ten zbiór jest niezwykle istotny, gdyż stanowi podstawę dla wielu bardziej zaawansowanych koncepcji matematycznych.
Definition: Liczby całkowite to liczby, które można zapisać bez części ułamkowej, obejmujące liczby naturalne, ich odwrotności oraz zero.
Zbiór liczb całkowitych symbol jest reprezentowany przez literę Z lub C, co ułatwia ich identyfikację w notacji matematycznej. Warto zauważyć, że zbiór ten jest nieskończony w obu kierunkach, co oznacza, że nie ma ani największej, ani najmniejszej liczby całkowitej.
Highlight: Zbiór liczb całkowitych jest oznaczany symbolem Z lub C i obejmuje nieskończony ciąg liczb w obu kierunkach.
W ramach zbioru liczb całkowitych możemy wyróżnić kilka podzbiorów:
-
Liczby całkowite dodatnie: To wszystkie liczby całkowite większe od zera. Zbiór ten jest identyczny ze zbiorem liczb naturalnych bez zera i jest oznaczany jako C+ = {1, 2, 3, 4, ...}.
-
Liczby całkowite ujemne: To wszystkie liczby całkowite mniejsze od zera. Zbiór ten jest oznaczany jako C- = {..., -4, -3, -2, -1}.
-
Liczby naturalne: Stanowią podzbiór liczb całkowitych, obejmujący wszystkie dodatnie liczby całkowite oraz zero. Jakie to liczby naturalne? To 0, 1, 2, 3, 4 i tak dalej.
Example: Przykłady liczb całkowitych: -5, -2, 0, 3, 7, 12. Natomiast 1/2 czy 3.14 nie są liczbami całkowitymi.
Warto podkreślić, że zero odgrywa szczególną rolę w zbiorze liczb całkowitych. Czy 0 jest liczba całkowita dodatnia? Nie, zero nie jest ani dodatnie, ani ujemne - jest neutralne i stanowi granicę między liczbami dodatnimi a ujemnymi.
Vocabulary: Dopuszczalne są tylko liczby całkowite - to sformułowanie często spotykane w zadaniach matematycznych, oznaczające, że rozwiązanie musi być liczbą całkowitą, bez części ułamkowej.
Czy ułamki to liczby całkowite? Nie, ułamki nie są liczbami całkowitymi, ponieważ zawierają część ułamkową. Jednak każda liczba całkowita może być zapisana jako ułamek z mianownikiem 1, na przykład 5 = 5/1.
Zrozumienie koncepcji liczb całkowitych jest kluczowe dla dalszej nauki matematyki, gdyż stanowią one fundament dla bardziej zaawansowanych dziedzin, takich jak algebra czy teoria liczb.
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4.7/5
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Wszystkie liczby całkowite i symbole liczb całkowitych
Liczby całkowite to fundamentalny koncept matematyczny obejmujący liczby bez części ułamkowej. Zbiór ten zawiera liczby naturalne, ich odwrotności oraz zero, i jest oznaczany symbolem Z lub C. Wszystkie liczby całkowite tworzą nieskończony ciąg w obu kierunkach.
• Liczby całkowiteobejmują... Show more
Liczby całkowite - podstawowe informacje
Liczby całkowite to fundamentalny koncept w matematyce, obejmujący wszystkie liczby, które można zapisać bez części ułamkowej. Ten zbiór jest niezwykle istotny, gdyż stanowi podstawę dla wielu bardziej zaawansowanych koncepcji matematycznych.
Definition: Liczby całkowite to liczby, które można zapisać bez części ułamkowej, obejmujące liczby naturalne, ich odwrotności oraz zero.
Zbiór liczb całkowitych symbol jest reprezentowany przez literę Z lub C, co ułatwia ich identyfikację w notacji matematycznej. Warto zauważyć, że zbiór ten jest nieskończony w obu kierunkach, co oznacza, że nie ma ani największej, ani najmniejszej liczby całkowitej.
Highlight: Zbiór liczb całkowitych jest oznaczany symbolem Z lub C i obejmuje nieskończony ciąg liczb w obu kierunkach.
W ramach zbioru liczb całkowitych możemy wyróżnić kilka podzbiorów:
-
Liczby całkowite dodatnie: To wszystkie liczby całkowite większe od zera. Zbiór ten jest identyczny ze zbiorem liczb naturalnych bez zera i jest oznaczany jako C+ = {1, 2, 3, 4, ...}.
-
Liczby całkowite ujemne: To wszystkie liczby całkowite mniejsze od zera. Zbiór ten jest oznaczany jako C- = {..., -4, -3, -2, -1}.
-
Liczby naturalne: Stanowią podzbiór liczb całkowitych, obejmujący wszystkie dodatnie liczby całkowite oraz zero. Jakie to liczby naturalne? To 0, 1, 2, 3, 4 i tak dalej.
Example: Przykłady liczb całkowitych: -5, -2, 0, 3, 7, 12. Natomiast 1/2 czy 3.14 nie są liczbami całkowitymi.
Warto podkreślić, że zero odgrywa szczególną rolę w zbiorze liczb całkowitych. Czy 0 jest liczba całkowita dodatnia? Nie, zero nie jest ani dodatnie, ani ujemne - jest neutralne i stanowi granicę między liczbami dodatnimi a ujemnymi.
Vocabulary: Dopuszczalne są tylko liczby całkowite - to sformułowanie często spotykane w zadaniach matematycznych, oznaczające, że rozwiązanie musi być liczbą całkowitą, bez części ułamkowej.
Czy ułamki to liczby całkowite? Nie, ułamki nie są liczbami całkowitymi, ponieważ zawierają część ułamkową. Jednak każda liczba całkowita może być zapisana jako ułamek z mianownikiem 1, na przykład 5 = 5/1.
Zrozumienie koncepcji liczb całkowitych jest kluczowe dla dalszej nauki matematyki, gdyż stanowią one fundament dla bardziej zaawansowanych dziedzin, takich jak algebra czy teoria liczb.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Students love us — and so will you.
4.6/5
App Store
4.7/5
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user