Pythonで学び直す高校数学を購入．

Python をどうやれば使えるのかわかってないが，試しに python と打ってみると何か起動するみたい．

Raspberry Pi

login as: pi
pi@192.168.1.34's password:
Linux raspberrypi 4.14.79-v7+ #1159 SMP Sun Nov 4 17:50:20 GMT 2018 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Apr  5 21:59:29 2019

SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.

pi@raspberrypi:~ $ python
Python 2.7.13 (default, Sep 26 2018, 18:42:22)
[GCC 6.3.0 20170516] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
pi@raspberrypi:~ $ python3
Python 3.5.3 (default, Sep 27 2018, 17:25:39)
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

Synology NAS

login as: Iwao
Iwao@DS115j's password:
Iwao@DS115j:~$ python
Python 2.7.12 (default, Sep  7 2018, 13:20:13)
[GCC 4.9.3 20150311 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> hex(120)
'0x78'
>>> bin(120)
'0b1111000'
>>>
Iwao@DS115j:~$ python3
-sh: python3: command not found
Iwao@DS115j:~$