FORTRAN (Computer program language) 48 Data processing 28 Computer programming 12 Programming 10 Electronic data processing 7 Numerical analysis 7 ALGOL (Computer program language) 6 Electronic digital computers 6 COBOL (Computer program language) 5 Business 4 Computer programs 4 Engineering 4 Linear programming 4 Mathematics 4 BASIC (Computer program language) 3 Mathematical optimization 3 Programming languages (Electronic computers) 3 Standards 3 Statistics 3 Digital computer simulation 2 GPSS (Computer program language) 2 Geology 2 Numerical calculations 2 Problems, exercises, etc 2 Programming (Mathematics) 2 Structured programming 2 Assembler language (Computer program language) 1 Calculators 1 Calculus 1 Computer graphics 1