yum provides methods

What is the difference between these yum provides and whatprovides methods? I know provides and whatprovides give the same results, but different methods of / and \ give different results. Also whether you put / and \ in front of the string or behind the string give different results. I have tried this so far.

sudo yum provides libcrypto.so.4
sudo yum provides */libcrypto.so.4
yum provides */libcrypto.so.4
yum provides /usr/include/security/pam_appl.h
yum provides \*bin/named-checkzone
yum provides \*bin/named-checkzone
sudo yum provides \*bin/named-checkzone
yum whatprovides */lsb_release
yum whatprovides */g++
yum whatprovides */ff
sudo yum provides firefox
sudo yum provides firefox\*
sudo yum provides gecko-libs\*
yum whatprovides */lsb_release