### A good answer might be:

Click!

# e

Writing the cross (×) and the superscript exponent is tedious, and not suitable for programs. A slighltly altered notation is used in computer programs and in input and output text:

     1.38502 × 10+03 =  1.38502e+03
     1.38502 × 10-03 =  1.38502e-03
    -1.38502 × 10+03 = -1.38502e+03
    -1.38502 × 10-03 = -1.38502e-03

Caution: For SPIM, only a small "e" is allowed in floating point constants. (Some software systems, such as Java, allow both upper and lower case e's).

### QUESTION 9:

How many digits are in each of the above expressions? How many digits are in the mantissa? How many in the exponent?