Sets the number of significant digits, used in REAL calculations, for greater precision or speed. SD can be set to any EVEN number from 4 to 14. The default setting is 8. SD should only be used at the start of a program, before any assignations are made to variables or any arrays are dimensioned.
If you are using STRING arrays, make sure that SD has a value greater than or equal to 6, otherwise the computer will not allocate enough space for your STRING ARRAY.
Program Example
00100 SD(14)
00110 A0 = 1.788
00120 BO = 1.432
00130 PRINT A0 * B0
00140 END