Texas Instruments TI-89 User Manual - Page 823

G[n][c]: Same as fixed format but also separates digits to the left of the radix into groups of three. c specifies the group separator character and defaults to a comma. If c is a period, the radix will be shown as a comma. [Rc]: Any of the above specifiers may be suffixed with the Rc radix flag, where c is a single character that specifies what to substitute for the radix point. fPart( ) MATH/Number menu fPart(expression1) ⇒ expression fPart(list1) ⇒ list fPart(matrix1) ⇒ matrix Returns the fractional part of the argument. fPart(ë 1.234) ¸ ë.234 fPart({1, ë 2.3, 7.003}) ¸ {0 ë.3 .003} For a list or matrix, returns the fractional parts of the elements. The argument can be a real or a complex number. Func CATALOG Func block EndFunc Required as the first statement in a multistatement function definition. block can be either a single statement or a series of statements separated with the ":" character. Note: when() also can be used to define and graph piecewise-defined functions. In function graphing mode, define a piecewise function: Define g(x)=Func:If x