Generating a data item defined with E-Notation

The following are expectations when generating a data item defined with E-Notation

Data is generated with the exponent as a capital "E" "1.314E1"
Data is generated without spaces surrounding the capital "E" exponent indicator- "1.314E-4"
Data is generated without signing the positive exponent values ("1.8E8" not "1.8E+8")