Much of those functions are implemented as floating point instructions in hardware. The hardware has internal algorithms, some of which include tables to produce initial values to speed up the algorithms. I'm not sure where you could get this information, as it is probably proprietary.IssacNewton said:
Fortran intrinsic functions are built-in functions that are provided by the Fortran language itself. They are essential for performing basic operations such as mathematical calculations and string manipulation. These functions are important because they save time and effort by eliminating the need for users to write their own code for these common tasks.
The source code for Fortran intrinsic functions is typically provided by the compiler that you are using. You can either access it through the documentation of the compiler or by using a debugger to step through the code while running a program that uses intrinsic functions.
No, the source code for Fortran intrinsic functions is not meant to be modified by users. It is typically written in a low-level language and is optimized for efficiency. Any changes made to the source code could result in errors or unexpected behavior.
The main difference between Fortran intrinsic functions and user-defined functions is that intrinsic functions are built into the Fortran language and are always available, whereas user-defined functions are created by the user and can only be used if they are explicitly included in the code. Intrinsic functions also tend to be more optimized for performance compared to user-defined functions.
Yes, there are some limitations to using Fortran intrinsic functions. These functions are designed for basic operations and may not be suitable for more complex tasks. Additionally, some compilers may not support all of the intrinsic functions, so it is important to check the documentation of your specific compiler to see which functions are available.