 In 1963 , the 58th Legislature of Texas approved of Rudder 's changes , and officially renamed the school " Texas A & M University " , specifying that the " A " and the " M " were purely symbolic , reflecting the school 's past , and no longer stood for " Agricultural and Mechanical " . In the following 35 years , Texas A & M more than tripled its enrollment from 14 @,@ 000 students to over 45 @,@ 000 . 
