AT&T 6300 Programmer's Manual page 220

CSNG
Function
Syntax
Remarks
Example
7-64
Converts any numeric argument to a single
precision number.
CSNG (numexp)
See the CINT and CDBL functions for
converting numbers to the integer and double
precision data types, respectively.
10 A#= 975.342123217685
20 PRINT A#; CSNG(A#]
RUN
975.342123217685 975.3421
Ok