+118677 I am sorry Feitan but this is not really correct.
pi is a number. It is the answer when the circumference of a circle is divided by its diameter. In other words it is the number of times that the diameter will go into the circumference of the circle.
It is an IRRATIONAL NUMBER. This means that it cannot be represented exactly as a fraction. And from that it also follows that it can not be represented exactly by a terminating or a recurring decimal.
These approximations are sometimes used
3.14 or 3.142 or
$${\frac{{\mathtt{22}}}{{\mathtt{7}}}} = {\mathtt{3.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$
or the approximation from the web2 calc is
$${\mathtt{\pi}} = {\mathtt{3.141\: \!592\: \!653\: \!589\: \!793\: \!2}}$$
The web2 calc is much more accurate than the others but it is not exact.
As I said Pi is an irrational number and cannot be written exactly as a number.
+92 Pi is basically 22/7, which results in a repeating decimal. As a result, we generally shorten it to 3.14.
+118677 I am sorry Feitan but this is not really correct.
pi is a number. It is the answer when the circumference of a circle is divided by its diameter. In other words it is the number of times that the diameter will go into the circumference of the circle.
It is an IRRATIONAL NUMBER. This means that it cannot be represented exactly as a fraction. And from that it also follows that it can not be represented exactly by a terminating or a recurring decimal.
These approximations are sometimes used
3.14 or 3.142 or
$${\frac{{\mathtt{22}}}{{\mathtt{7}}}} = {\mathtt{3.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$
or the approximation from the web2 calc is
$${\mathtt{\pi}} = {\mathtt{3.141\: \!592\: \!653\: \!589\: \!793\: \!2}}$$
The web2 calc is much more accurate than the others but it is not exact.
As I said Pi is an irrational number and cannot be written exactly as a number.
