=========================================================================
  ThermoFluidCalc — Offline Fortran Execution Guide
=========================================================================

Calculator : Grid Jacobian Ratio
Category   : Cfd

Files Included:
  - jacobian.f90 (Fortran Source Code)
  - input.txt (Pre-configured Sample Input)

-------------------------------------------------------------------------
1. How to Compile
-------------------------------------------------------------------------
Make sure you have a Fortran compiler installed (like gfortran).
Run the following compilation command in your terminal:

  gfortran -O3 jacobian.f90 -o jacobian

-------------------------------------------------------------------------
2. How to Execute
-------------------------------------------------------------------------
Run the compiled binary and redirect the input.txt file into stdin:

  jacobian < input.txt

-------------------------------------------------------------------------
3. Input File Details
-------------------------------------------------------------------------
The input file 'input.txt' contains sequential parameters separated by
newlines. Here is the structure of the included 'input.txt':

  Line 1 (Mode (1=Single Quadrilateral, 2=Grid, 3=Single Point evaluation)\nCorner coordinates (x1 y1 x2 y2 x3 y3 x4 y4)): 1
  Line 2 (Parameter 2): 0.0 0.0 1.0 0.0 1.0 1.0 0.0 1.0

=========================================================================
ThermoFluidCalc — https://thermofluidcalc.com
