pi
das Pi, die Pis
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pi
The mathematical constant π. It represents the ratio of a circle’s circumference to its diameter and is approximately 3.14159.
Für die Berechnung der Kreisfläche braucht man die Zahl Pi.
You need the number pi to calculate the area of a circle.
pi
The sixteenth letter of the Greek alphabet, written as π or Π.
Das Pi steht im griechischen Alphabet an sechzehnter Stelle.
Pi is the sixteenth letter of the Greek alphabet.
| gender | neuter das |
|---|---|
| plural | die Pis |
| genitive | des Pi |
| singular | plural | |
|---|---|---|
| nominative | das Pi | die Pis |
| accusative | das Pi | die Pis |
| dative | dem Pi | den Pis |
| genitive | des Pi des Pis | der Pis |
The article changes with the case; it is shown in colour.
In mathematical formulas, 'Pi' (pi) is usually written with the lowercase Greek letter π. As a letter of the Greek alphabet, it also appears as the uppercase letter Π.
In Formeln schreibt man Pi meist als π.
In formulas, pi is usually written as π.
Das Pi wird im Alphabet mit Π beziehungsweise π geschrieben.
In the alphabet, pi is written as Π or π.
In mathematical texts, 'Pi' (pi) often appears with verbs and expressions such as „mit Pi rechnen“ (to calculate with pi), „Pi verwenden“ (to use pi), or „Pi auf mehrere Dezimalstellen runden“ (to round pi to several decimal places).
Für diese Aufgabe müssen wir mit Pi auf mehrere Dezimalstellen genau rechnen.
For this task, we have to calculate with pi to several decimal places.
You can usually tell from the context whether 'Pi' (pi) refers to the circle constant or the letter: formulas, circles, and calculations point to the mathematical meaning, while words such as „Alphabet“ (alphabet), „Buchstabe“ (letter), or „griechisch“ (Greek) point to the alphabetic meaning.
Auf dem Arbeitsblatt sollten die Schüler das Pi als sechzehnten Buchstaben des griechischen Alphabets eintragen.
On the worksheet, the students were supposed to enter pi as the sixteenth letter of the Greek alphabet.
Beim Berechnen des Umfangs verwendeten die Schüler die Zahl Pi.
When calculating the circumference, the students used the number pi.
