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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).