oomath: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/oomath - from package: libreoffice-math

You may install the required package with command yum install {package}

Error in other languages:
oomath: bevel nie gevind nie
oomath: comandă negăsită
oomath: comando não encontrado
oomath: commande introuvable
oomath: command not found
oomath: käsku ei ole
oomath: không tìm thấy lệnh
oomath: komanda nerasta
oomath: Kommando nicht gefunden.
oomath: kommandot finns inte
oomath: komut yok
oomath: nie znaleziono polecenia
oomath: níor aimsíodh an t-ordú
oomath: no se encontró la orden
oomath: no s'ha trobat l'ordre
oomath: opdracht niet gevonden
oomath: parancs nem található
oomath: perintah tidak ditemukan
oomath: príkaz nenájdený
oomath: příkaz nenalezen
oomath: команда не найдена
oomath: командата не е открита
oomath: 命令找不到
oomath: コマンドが見つかりません