Add & test scalar_1D_t symmetric addition operator#30
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This commit hoists the 1D scalar grid locations calculator up from scalar_1D_s to tensors_1D_m, renames it from "scalar_1D_grid_locations" to "cell_centers_extended_1D", and makes it public in anticipation of wider use in multidimensional calculations.
This commit hoists the 1D vector grid locations calculator up from vector_1D_s to tensors_1D_m, renames it from "faces" to "faces_1D", and makes it public in anticipation of wider use in multidimensional calculations.
The commit contains the first passing test of a 2D differential operator: .grad. correctly computes a gradient_2D_t when given a scalar_2D_t operand.
This commit increases the rank of the tensor_2D_t values_ component to facilitate storing tensors of rank up to and including rank 4.
This commit tests the .grad. operator with a scalar_2D_t defined as the biquadratic function z = 1 - 2*x + 3*x**2 - x*y/5 + 3*y**2 - 2*y which has the gradient g = [-2 + 6*x - y/5, -x/5 + 6*y - 2] on the domain cells=[30,20], x_min=[-1D0,1D0], x_max=[9D0,4D0].
This commit adds 1. A scalar_2D_t "to_file" type-bound procedure that creates a Juliennne file_t object containing points for a surface plot, 2. An scalar-surface example that creates a scalar and saves it to example/scripts/scalar-surface.csv, and 3. A scalar-surface.gnuplot script that plots the surface and saves it to scalar-surface.gif.
This commit adds 1. A vector_1D constructor for constant vector fields and 2. A vector_2D grid calculator.
This commit 1. Adds public scalar_3D_t and vector_3D_t types and a supporting private tensors_3D_t type and 2. A passing unit test for the gradient of a 3D scalar field.
This commit 1. Updates the scalar-surface plot example to also output files that can be used to plot the gradient of the surface, 2. Redefines the surface so that it corresponds to a velocity potential defining an irrotational vortex, 3. Adds a script that plots the resulting velocity vield and the expected velocity field.
This reverts commit 3b86aa2.
This commit gathers a pattern of scalar_1D_t operand conformability assertions into one function and calls that function where applicable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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