Everyone is familiar with the Euler's identity.
"e" as /ee/
"pi * i" as /pi/ + /i/ = /pi:/
"1" as Roman "I", /ai/
"0" as /o:/
Thus, if /k/ means "+",
the Euler's identity correct pronunciation is /ee/ /pi:/ /k/ /ai/ /o:/
Now we know what this character was actually shouting, and that the mathematics is strong.
Thanks to the help of the forum, resolved.
P.S.
Actually, he adds something like "math of", but I can't hear it exactly.