Radio Shack TRS-80 PC-3

"15" + 10 is illegal
is "1510", not "25"
Relational Expressions
A relational expression compares two expressions and determines whether the stated relationship is True or False. The relational
operators are:
> Greater Than
>= Greater Than or Equal To
Equals
<> Not Equal To
<= Less Than or Equal To
< Less Than
The following are valid relational expressions:
A<B
C(1,2»=5
0(3) <>8
If A was equal to 10, B equal to 12, C(1, 2) equal to 6, and D(3) equal to 9, all of these relational expressions would be True.
Character strings can also be compared in relational expressions. The two strings are compared character by character according
to their ASCII value, starting at the first character (see Appendix B for ASCII values). If one string is shorter than the other,
a 0 or NUL will be used for any missing positions. All of the following relational expressions are True:
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