Status Modes; Fed/Muni Switch; Corrections & Error Messages; Overflow And Underflow - Monroe 3180 User Manual

STATUS MODE
The CODE, CALL/MATURITY, and COUPONS ER YEAR keys are considered to set modes of operation
for keys which perform calculations. The "status" of all the modes is continuously displayed on line 1 of th
edisplay. Each mode is defined in the Description of Keys section and illustrated in the example
calculations.
The following is a typical example of the mode settings:
Security Code 0
Status Line
Result/Entry Line
Security Code 0 (Municipal, Corporate, Agency Bond) Periodic Semi-annual coupons, Calculating to Maturity Date.

FED/MUNI SWITCH

This switch controls the number of decimal places of price results in Security Codes 0, 2, 3, 4, and 6.
Prices are rounded to 6 places in the FED position and truncated to 3 places in MUNI. Security Code 1
and 5 prices are calculated to 6 and 7 decimal places respectively.
CORRECTIONS & ERROR MESSAGES
If an error is made when keying a number or date, the TRADER II will display a message. For example, if
an invalid security code is entered (using the CODE key) the message Invalid Code, will be displayed.
The error message need not be cleared. Just continue, by entering the correct number. An invalid date
entry will result in a date of 00-00-0000. Whenever possible, the TRADER II will indicate which entry is
incorrect refer to Appendix C for a complete list of error conditions.
If an error is detected before an entry is complete, press the C/CE key and enter the number again.

OVERFLOW AND UNDERFLOW

Calculation results which are too large (overflow) or small (underflow) will cause the number to be
displayed in a special format.
Numbers have an internal capacity of fourteen digits (14) with a floating decimal point. When the decimal
point is greater than the maximum number of digits, TRADER II displays as 1.234567890123+14 which
represents the actual number 123,456,789,012,340. In other words, the 14 most significant digits of the
result will be displayed along with an E+nn or E-nn indicating the placement of the decimal. In the
example above, the acutal number was obtained by moving the decimal point to the right 14 digits. If
E-nn is displayed, move the decimal point to the left nn digits. Overflow will be displayed to indicate an
error.
4
Interest and
Day Count
Semi-annual coupons
C=0 PER 30/360 SEMI 06-24-87 MATURITY
Settlement Date 06-24-87
Settlement Date
To Maturity
MONROE TRADER II