Sequence of the calculation
Function key
Display
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30.
+I
31. Recall
*II
307 000,00
32.
:
307 000,00
33. Enter
900.
=
341,11
34.
+II
341,11
35. Recall
*I
390,18
36.
:
398,18
37. Recall
*II
341,11
33.
=
1,17
The calculated numbers have to be multiplied by 100, since they are
percentages.
30. Square root calculation nor the iteration formula
1 ( x )
Formula: Yn +I = (--- + Yn)
2 ( Yn )
In the root calculation with the aid of the iteration formula, it is
important to provide an initial solution by estimation so that as few
approximation steps as possible are required in order to arrive at the
result. In most cases, the result is already obtained with the
approximate approximation.
To increase the accuracy of the result. It is necessary to count as many
decimals as possible. Therefore, the Decimal point position "6" has been
selected in the following examples.
2______
Example :
√
630,01
The Radikand is divided from the left to the left in groups of two
digits. In this example, there are two groups.
2_________
√
6|30|,01
The number of groups predetermines the number of roots
the Decimal point.
From the extreme left group (even if the outermost group consists of only
one digit, as in this example, it is considered a group) the worm!
estimated.
The root of 6 is about 2.3. Since there are two groups before the Decimal
point , the root value is 23. Now the calculation can be started after
the iteration formula.
31
