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location Aylesbury Buckinghamshire, UK
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quadratic linear form XFX with matrix

F:  1   1
    1   1

in canonical base can be expressed as X' F' X'

X'  1   0   X'   
    0   0

where X'=A-1X, F'=AFA and A is transition matrix. Canonical base vectors are [1,0] and [-1,1]. Thus this is correct that (a+b)^2 = a^2 + b^2 + 2ab


Oct
11
revised meaning of this ps aux output
refactor
Jul
31
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2
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May
6
accepted Many dhclient processes running?
May
6
comment Many dhclient processes running?
but why these processes not die when their caller die?
May
6
comment Many dhclient processes running?
thank you. and why is this? what is the reason? can you suggest something?
May
6
comment meaning of this ps aux output
thank you very much
May
6
accepted meaning of this ps aux output
May
6
asked Many dhclient processes running?
May
6
asked meaning of this ps aux output
Apr
26
revised how to configure dhcp?
added 13498 characters in body
Apr
26
comment how to configure dhcp?
please see updated log info
Apr
26
revised how to configure dhcp?
added 729 characters in body
Apr
26
comment how to configure dhcp?
and now IP is configured with "interface eth0 has been configured with new IP=192.168.0.202"
Apr
26
comment how to configure dhcp?
TP-Link is plugged into LAN port in NetGear (because Internet is in NetGear's WAN) and this is TP-Link's WAN - so correct. Now another issue: I restarted connection, lost it, when I plugged wire of and on again TP-Link listed my Ubuntu with correct IP 192.168.0.200 under DHCP Clients List and in ARP List there is my Ubuntu Mac mapped into this IP so it seems likr TP-Link sees and recognizes my host correctly but host itself says no connection, again: kill dhcpcd eth0 and start it again gives me info that on host IP is configured correctly. However by your advice I did kill instead of -9 ...