Bronze Edition Guide - True BASIC

178 BRONZE Edition Guide
NUM Function
NUM (strex)
NUM returns the numerical value that is stored as a string, which must contain exactly
eight characters, using the IEEE eight-byte format. Normally, the string will have been
previously constructed with the NUM$ function.
NUM$ Function
NUM$ (numex)
NUM$ returns a string of length eight that contains the numberical value using the IEEE
eight-byte format. Normally, the NUM function must be used to convert the string back to
a number.
ORD Function
ORD(string-expression)
Returns the ordinal position in the ASCII character set of the character given by stringexpression,
which must be either a single character or an allowable two- or three-character
name of certain ASCII characters as described in Appendix A, except that ORD("") = –1
("" denotes the null string.) ORD is the opposite of the CHR$ function in that
ORD(CHR$(n)) = n for all n in the range 0 to 255. However, CHR$(ORD(a$)) = a$ only if
the value of a$ is a single ASCII character.
PI Function
PI
A no-argument function, PI returns the value of pi, the ratio of a circle’s circumference to
its diameter (approximately equal to 3.14159265).
POS Function
POS(string-expression, string-expression)
POS(string-expression, string-expression, rnumeric-expression)
Returns the position of the first character of the first occurrence of the entire second
string in the first string. If the second string does not appear in the first string, or if the
first string is empty while the second is not, then POS returns 0. If the second string is
empty, then POS returns 1.
If a third argument is present, then the search for the second string starts at that character
position in the first string given by that number and proceeds to the right. If the second
string is empty, POS returns the starting position. The first form of POS is equivalent
to the second form with the third argument equal to one.