TM5-6675-326-148-6.12.1 Accumulations- ContinuedKeystrokesD i s p l ay1.00005.00002.00009.00003.000016.000098.000021.0000155.0000122.00003.0000First pair is accumulated; n = 1Second pair is accumulated; n = 2Third pair is accumulated; n = 3Sum of x values from register R.1Sum of squares of x valuesfrom register R.2Sum of y values from register R.3Sum of squares of y valuesfrom register R.4Sum of products of x and yvalues from register R .5Number of entries (n = 3)from register R.08 - 6 . 1 2 . 2 D e l e t i ng andCorrecting Data.a .If an incorrect value is keyed in and z+ has not yet beenp r e s s e d , p r e s s ~ and key in correct value.b .To change one of the values, or if after pressingl~+lone ofthe values was erroneous, correct the accumulations by usingz- (summation minus) key as follows:(1) Key incorrect data pair into X- and Y-registers.I=]can be used to return a single incorrect datavalue to displayed X-register.( 2 ) P r e s s q2-to delete incorrect data.(3) Key in correct values for x and y. If one value of an(x, y) data pair is incorrect, both values must bedeleted and reentered.8-20
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