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78
w
• You can use only one variable in the function for input sequence {
ak}.
• Input integers only for the initial term of sequence {
ak} and last term of sequence
{ak}.
• Input of n and the closing parentheses can be omitted. If you omit n, the calcula-
tor automatically uses n = 1.
kk
kk
k Σ Calculation Applications
uu
uu
uArithmetic operations using Σ calculation expressions
Expressions:
Possible operations: Sn + Tn, Sn – Tn, etc.
uu
uu
uArithmetic and function operations using Σ calculation results
2 × S
n, log (Sn), etc.
uu
uu
uFunction operations using Σ calculation terms (
ak, k)
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.
kk
kk
k Σ Calculation Precautions
• Make sure that the value used as the final term
β
is greater than the value used
as the initial term
α
. Otherwise, an Ma ERROR will occur.
• To interrupt an ongoing Σ calculation (indicated when the cursor is not on the dis-
play), press the A key.
nn
Sn =
Σ
ak, Tn =
Σ
bk
k = 1 k = 1
3 - 7 Σ Calculations
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