In mathematics, the trigonometric functions (also called the circular functions) are functions of an angle. They relate the angles of a triangle to the lengths of its sides. Trigonometric functions are important in the study of triangles and modeling periodic phenomena, among many other applications.
Yellow stool is typically due to an excess of fatty foods and grease in the diet. Mayo Clinic states that it can also be caused by a malabsorption disorder such as celiac disease.
Green or yellow stool is usually caused by your bowels moving too fast, as with mild diarrhea. Bile, the main pigment in poop, starts out green and turns brown over time. Pale gray or yellow feces may indicate liver disease. 2. Look for signs of blood. Take note of any stool that is red or pitch black in color.