a computerized implementation of the soil triangle Function receives three numbers, the fractions of sand, silt and clay in a soil sample, and returns an integer that can be interpreted to indicate a specific soil classification (e.g., sandy loam, silty clay, etc.). If the fractions do not add to unity, an error code of -1 is returned to the invoking statement.-a computerized implementation of the soil triangle Function receives three numbers, the fractions of sand, silt and clay in a soil sample, and returns an integer that can be interpreted to indicate a specific soil classification (e.g., sandy loam, silty clay, etc.). If the fractions do not add to unity, an error code of-1 is returned to the invoking statement.