You will also have a test called a gastric pH level test to measure the amount of acid in your stomach. This helps to tell whether it is a gastrinoma causing the high gastrin levels or if there is another cause. Your doctor may do this test when you are having an endoscopy.
Euler's name is associated with a large number of topics. Euler is the only mathematician to have two numbers named after him: the important Euler's number in calculus, e, approximately equal to 2.71828, and the EulerâMascheroni constant Î³ sometimes referred to as just Euler's constant, approximately equal to 0.57721.
e is also the base of natural logarithms. The natural logarithm function ln(x) is defined that way: Another example from calculus is that if. Note: The term Euler's Constant is usually reserved for another number also first studied by Euler, 0.5772156649...