4 5 decimal

&[DATE] &[TIME] - &[FILENAME]

var whatIs clear clear 11 line : var IsString 1 ≡ varType str : testVar IsMatrix numRows testVar rows num2str : numRows 21 line : clear var IsMatrix : clear 11 substr r ≡ (clear 11 substr, ≡ (| clear 11 substr r ≡ clear 61 substr s ≡ varType sys : varType num : if varType sys : if varType mat : if 31 line if varType 31 line :

Test Examples:

str a string :

str whatIs str

number 15 :

number whatIs num

matrixNoSpaces No_spaces 11 mat :

matrixNoSpaces whatIs mat

matrixWithSpaces I HAVE SPACES OH   NOOOOOOOO 11 mat :

matrixWithSpaces whatIs mat

systemNoSpaces 5 nospaces 21 sys :

systemNoSpaces whatIs sys

systemWithSpaces 5 spaces 21 sys :

systemWithSpaces whatIs sys