
Elektronika MK-61 Calculator Operating Instructions
15
Draft version 1.0 – Oct.2014
Please send corrections to Jose Mesquita ([email protected])
6.
Entering Data and Displaying Results
6.1.
MK numeric system - Decimal. The information is displayed on the 12 digits
luminous discharge type display, sporting a green glow; it has 8-digits for
mantissa, 2-digits for exponent, 1-digit for mantissa sign and another digit for
exponent sign.
6.2.
The MK calculation range is: 1˟10
-99
≤ x ≤ 9.9999999˟10
99
The results of calculations in the range of 1 ≤ x ≤ 99999999 are displayed in the
natural form, and outside this range are displayed as floating-point numbers.
6.3.
The data is introduced in the MK by pressing the appropriate keys. To introduce
fractional numbers, first type the integer part, then the decimal point, and then
the fractional part.
6.4.
When you enter a number with exponent, the mantissas is introduced first and
then press the key
EEX
(
ВП
)
to enter the exponent value.
To change mantissa or exponent signs, press the key
/─/
after typing the
values.
6.5.
Pressing the key
ENTER
(
В↑
) normalizes the inputted number in stack
Reg. X, and a copy of the register X will go into register Y as well
5
.
6.6.
After you enter an eight-digit mantissa number, further pressing additional
number keys does not change the display reading.
5
The 4-register stack lift operation is automatic on the ENTER key execution: The Reg. Y content is also
copied to Reg. T, and the previous Reg. T contents is lost.