Small Scientific Programs

Unit Conversion Pipeline

Scale Measurements

A small scientific program often starts by converting raw measurements into analysis units.

Program

Play the program to choose the conversion scale and see the same readings summarized in different units.

unit_conversion_pipeline.f90 
program unit_conversion_pipeline_demo
    implicit none
    real :: readings(3)
    real :: scale
    real :: converted(3)
    real :: total

    readings = [120.0, 150.0, 180.0]
    scale = 
    converted = readings * scale
    total = sum(converted)
    print '(F0.2)', total
end program unit_conversion_pipeline_demo

program unit_conversion_pipeline_demo
    implicit none
    real :: readings(3)
    real :: scale
    real :: converted(3)
    real :: total

    readings = [120.0, 150.0, 180.0]
    scale = 
    converted = readings * scale
    total = sum(converted)
    print '(F0.2)', total
end program unit_conversion_pipeline_demo

program unit_conversion_pipeline_demo
    implicit none
    real :: readings(3)
    real :: scale
    real :: converted(3)
    real :: total

    readings = [120.0, 150.0, 180.0]
    scale = 
    converted = readings * scale
    total = sum(converted)
    print '(F0.2)', total
end program unit_conversion_pipeline_demo
pipeline A conversion step can be separated from the final summary.
array scale `readings * scale` applies one scalar conversion to every element.
sum `sum(converted)` reduces the converted array to one reported value.