Casio FX-9750G PLUS User's Manual & Technical Reference page 94

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Summation
k k k k k Σ Calculation Applications
66
(Σ)
Calculations
• You can use only one variable in the function for input sequence
• Input integers only for the initial term of sequence
a
.
k
n
• Input of and the closing parentheses can be omitted. If you omit
calculator automatically uses
• Arithmetic operations using Σ calculation expressions
Expressions:
Possible operations:
• Arithmetic and function operations using Σ calculation results
2 × S
, log (S
n
• Function operations using Σ calculation terms (a
Σ (sink, k, 1, 5), etc.
• Note that you cannot use a Solve, differential, quadratic differential,
integration, maximum/minimum value or Σ calculation expression inside of a Σ
calculation term.
• Make sure that the value used as the final term β is greater than the value
used as the initial term α . Otherwise, an error will occur.
• To interrupt an ongoing Σ calculation (indicated when the cursor is not on the
display), press the A key.
n
= 1.
n
Σ
S = a , T
n k
k = 1
S + T , S – T
n n n
), etc.
n
a
and last term of sequence
k
n
Σ
= b
n k
k = 1
, etc.
n
, k)
k
a
.
k
n
, the