Counter and Theme Toggle - Fortran Typing CST Test
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Counter and Theme Toggle — Fortran Code
Demonstrates a simple counter with theme toggling using Fortran variables and console output.
program Counter
integer :: count = 0
logical :: isDark = .false.
print *, 'Counter:', count
print *, 'Theme:', merge('Dark','Light',isDark)
! Increment counter
count = count + 1
print *, 'Counter:', count
! Toggle theme
isDark = .not. isDark
print *, 'Theme:', merge('Dark','Light',isDark)
! Decrement counter
count = count - 1
print *, 'Counter:', count
! Reset counter
count = 0
print *, 'Counter:', count
end program CounterFortran Language Guide
Fortran (Formula Translation) is a high-level, compiled programming language designed for numeric computation, scientific computing, and engineering applications. Known for its efficiency in numerical calculations, Fortran has been a standard in scientific computing for over 60 years.
Primary Use Cases
- ▸Scientific simulations
- ▸Numerical and matrix computations
- ▸High-performance computing
- ▸Weather & climate modeling
- ▸Finite element analysis
- ▸Computational physics & chemistry
Notable Features
- ▸Efficient numerical computation
- ▸Array-oriented syntax
- ▸Strong support for parallelism (OpenMP, MPI)
- ▸Modern Fortran supports OOP
- ▸Backward compatible across decades of standards
Origin & Creator
Fortran was developed in the 1950s by IBM engineers led by John Backus to simplify programming of numeric computations on early computers.
Industrial Note
Fortran is heavily used in computational fluid dynamics, weather modeling, numerical simulations, high-performance computing (HPC), aerospace, and energy industry applications.