("phase", phase, test_values),

("polar", polar, test_values),

(

"rect",

rect,

((0, 0), (0, 1), (0, -1), (1, 0), (-1, 0), (1, 1), (-1, 1), (1, -1), (123.0, -456.0)),

),

("exp", exp, test_values),

("log", log, test_values_non_zero),

("sqrt", sqrt, test_values),

("cos", cos, test_values),

("sin", sin, test_values),