Apl
- 2. APL stands for A Computer ProgramIt was created by Kenneth IversonAPL is used in scientific,actuarial,statistical,and financial applications where it is used by practitioners for their own work and by programmers to develop commercial applications
- 3. The APL environment is called a workspace.In a workspace the user can define programs and data, The data values exist also outside the programs, and the user can manipulate the data without the necessity to define a program. For example, N 4 5 6 7 assigns the vector values 4 5 6 7 to N
- 4. APL programs are normally interpreted and less often compiled.APL compilers translated source APL to a lower level language such as C, leaving the machine-specific details to the lower level compiler.APL programs invariably will require changes to their content. Depending on the compiler, variable declarations might be needed, certain language features would need to be removed or avoided, or the APL programs would need to be cleaned up in some way.
- 5. APL makes a clear distinction between functions and operators.Functions take arrays arguments, and return arrays as results. Operators take functions or arrays as arguments, and derive related functionsApplying the same reduction operator to the maximum function derives a function which returns the largest of a group of numbers.