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Operation Index
G–3
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Name Keys and Description Page
Σ
+
/
Accumulates (y, x) into
statistics registers.
11–2
Σ
–
¹
-
Removes (y, x) from
statistics registers.
11–2
Σ
x
º
.
{
}
Returns the sum of x–values.
11–10 1
Σ
x
2
º
.
{
}
Returns the sum of squares of
x–values.
11–10 1
Σ
xy
º
.
{
}
Returns the sum of products of
x–and y–values.
11–10 1
Σ
y
º
.
{
}
Returns the sum of y–values.
11–10 1
Σ
y
2
º
.
{
}
Returns the sum of squares of
y–values.
11–10 1
σ
x
º
+
{
σ
}
Returns population standard
deviation of x–values:
nxx
i
÷−
∑
2
)(
11–6 1
σ
y
º
+
{
σ
}
Returns population standard
deviation of y–values:
nyy
i
÷−
∑
2
)(
11–6 1
θ
, r
y,x
º
±
Polar to rectangular coordinates.
Converts (r,
θ
) to (x, y).
4–9