eVec = Hello
( eVec is a string, which is a vector of characters )
Extract leading non-zero digit
04 - Scalar Equations 1
07 - Common functions and indexing 4
Rounding off numbers to n decimals
07 - Common functions and indexing 1
05 - Vector Equations 2
07 - Common functions and indexing 3
04 - Scalar Equations 3
03 - Matrix Variables 4
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