raylib: [raymath] `Vector2Angle()` gives unexpected results

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• I tested it on latest raylib version from master branch
• I checked there is no similar issue already reported
• My code has no errors or misuse of raylib

Issue description

Vector2Angle() gives unexpected results.

Environment

Windows 10 x86_64 Last RayMath

Issue Screenshot

Here I represent angles in degrees for Vector2Angle() and a “fixed” version of it. Red is the last Vector2Angle() Blue is the fixed one

#include <raylib.h>
#include <raymath.h>

float Vector2Angle_fixed(Vector2 v1, Vector2 v2)
{
  float result = atan2f(v2.y - v1.y, v2.x - v1.x);
  return result;
}

int main(void)
{
  InitWindow(256, 256, "Vector2Angle Issue");
  SetTargetFPS(60);
  
  while (!WindowShouldClose())
  {
    BeginDrawing();
    ClearBackground(BLACK);
    
    Vector2 Start={(int)(GetRenderWidth()/2),(int)(GetRenderHeight()/2)};
    Vector2 End={GetMouseX(),GetMouseY()};
    
    DrawLine(
      Start.x,
      Start.y,
      Start.x+(cosf(Vector2Angle(Start, End))*Vector2Distance(Start, End)),
      Start.y+(sinf(Vector2Angle(Start, End))*Vector2Distance(Start, End)),
      RED);
      
    DrawLine(
      Start.x,
      Start.y,
      Start.x+(cosf(Vector2Angle_fixed(Start, End))*Vector2Distance(Start, End)),
      Start.y+(sinf(Vector2Angle_fixed(Start, End))*Vector2Distance(Start, End)),
      BLUE);
      
    DrawText(TextFormat("Normal:%.01f°", Vector2Angle(Start, End)*RAD2DEG),       0,  0, 20, WHITE);
    DrawText(TextFormat("Fixed:%.01f°",   Vector2Angle_fixed(Start, End)*RAD2DEG), 0, 20, 20, WHITE);
    
    EndDrawing();
  }
  
  CloseWindow();
  return 0;
}