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The parameter dig represents the number of significant digits. So the BCD 555555

passed with a dig of 3 would be 5.55e5.

You can also use the following functions to convert a BCD to format mode of length

digit:

word CP_digit_OBC(OBCD *x,CP_CHAR str[],word digit,

short mode,short dig);

word CP_digit_CMP(CBCD *x,CP_CHAR str[],word digit,

short mode,short dig);

The values for mode can be:

• IM_MODE_NORM1

• IM_MODE_NORM2

• IM_MODE_FIX

• IM_MODE_SCI

digit can be one of the following:

• IM_DIGIT_9

• IM_DIGIT_6

• IM_DIGIT_4

digit sets the maximum number of characters that can appear in a BCD. For example, pi

with IM_DIGIT_4 would be 3.14. Pi with IM_DIGIT_6 would be 3.1415

The parameter dig is only used with Sci and Fix modes to determine the number of digits

after the decimal point.

Finally, these two functions can be used to convert a BCD to string in degrees, minutes,

seconds representation:

word CP_dms_OBC(OBCD *x, CP_CHAR str[]);

word CP_dms_CBC(CBCD *x, CP_CHAR str[]);

Here is an example that uses some of these functions:

OBCD x;

Cal_setpi_OBC(&x); // set x = 3.141592654…

CP_CHAR c[100];

CP_Norm_OBC(&x, c, IM_MODE_NORM1); // c=”3.141592654”

CP_Fix_OBC(&x, c, 3); // c=”3.142”

CP_Sci_OBC(&x, c, 2); // c=”3.1e+0”

CP_digit_OBC(&x, c, IM_DIGIT_9, IM_MODE_SCI, 3); // c=”3.14e+0”

104

Casio ClassPad 300 Programming Guide

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