What is this notation on the calculator: 1.388e-2

Answer 1

The notation 1.388e-2 on a calculator represents the number 0.01388.

In scientific notation, the letter "e" refers to exponentiation and is used to express large and small numbers more efficiently. The number before the "e" (in this case, 1.388) is called the coefficient or mantissa, while the number after the "e" (in this case, -2) is the exponent.

To convert the scientific notation 1.388e-2 to decimal form, you move the decimal point two places to the left since the exponent is negative. Thus, it becomes 0.01388.