Fixed: Made negative sign handling and according direction consistent across all implemenatations

Implementierung/tricorn.c

@@ -49,8 +49,8 @@ void tricorn(float complex start, size_t width, ssize_t height, float res, unsig
 
     const size_t y_step = (abs_height+thread_count-1)/thread_count;
     const float start_r = crealf(start);
-    const float start_i = cimagf(start);
     const float directional_res = (flipped ? -1.0f: 1.0f)*res;
+    const float start_i = height > 0 ? cimag(start) : cimag(start) + (height * directional_res);
 
     const_args* consts = malloc(sizeof(*consts));
     consts->width = width;