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.
Euler's Formula. Euler's identity is actually a special case of Euler's formula, e ^(i * x) = cos x + i sin x, when x is equal to pi. When x is equal to pi, cosine of pi equals -1 and sine of pi equals 0, and we get e ^(i *pi) = -1 + 0 i.