ax_heatmap (z_matrix) — Function

Heatmap visualization. Use inside ax_draw2d.

Calling forms:

• ax_heatmap(z_matrix) — pass a Maxima matrix(...) directly
• ax_heatmap(z_matrix, x_labels, y_labels) — matrix with string lists for axis labels
• ax_heatmap(expr, xvar, xlo, xhi, yvar, ylo, yhi) — symbolic expression sampled on a grid

Examples

/* From a matrix */
ax_draw2d(ax_heatmap(matrix([1,2,3],[4,5,6],[7,8,9])))$

/* With axis labels */
M: matrix([85,90,78],[92,88,95])$
ax_draw2d(
  ax_heatmap(M, ["Math","Science","English"], ["Alice","Bob"]),
  colorscale="Blues", title="Scores"
)$

/* From an expression */
ax_draw2d(
  ax_heatmap(sin(x)*cos(y), x, -%pi, %pi, y, -%pi, %pi),
  colorscale="Hot"
)$

Relevant Options

See also: ax_draw2d, ax_contour