EXFO FTB-4 Pro - IEEE 488.2 and Specific Command Reference; IEEE 488.2 Commands-Quick Reference

Data Types
FTB-2/FTB-2 Pro and FTB-4 Pro 393
Applicable Data Types for Output —IEEE 488.2
 <NR3 NUMERIC RESPONSE DATA> (or <NR3>)
This data type will be used by a device to return positive or negative
exponential numbers (floating-point numbers).
Examples: 4.3E–3, –8.9456E8, 123E–5
E
+
-
<digit>
.
+
-
<digit> <digit>
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