HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 355
Returns the sum of squares of, Returns the sum
UPC - 082916001456
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Name Σ+ Σ- Σx Σx2 Σxy Σy Σy2 σx σy θ, ry,x Keys and Description Accumulates (y, x) into statistics registers. { Removes (y, x) from statistics registers. | {;º} Returns the sum of x-values. | {;º} Returns the sum of squares of x-values. | {;º¸} Returns the sum of products of x-and y-values. | {;¸} Returns the sum of y-values. | {;¸} Returns the sum of squares of y-values. | {σº} Returns population standard deviation of x-values: ¦(xi − x)2 ÷ n | {σ¸} Returns population standard deviation of y-values: ¦(yi − y )2 ÷ n | s Polar to rectangular coordinates. Converts (r, θ) to (x, y). Page ¼ 11-2 11-2 11-10 1 11-10 1 11-10 1 11-10 1 11-10 1 11-6 1 11-6 1 4-9 Operation Index G-3
Operation Index
G–3
Name
Keys and Description
Page
Σ
+
Accumulates (
y
,
x
) into
statistics registers.
11–2
Σ
–
Removes (
y
,
x
) from
statistics registers.
11–2
Σ
x
{
}
Returns the sum of
x
–values.
11–10
1
Σ
x
2
{
}
Returns the sum of squares of
x
–values.
11–10
1
Σ
xy
{
}
Returns the sum of products of
x
–and
y
–values.
11–10
1
Σ
y
{
}
Returns the sum of
y
–values.
11–10
1
Σ
y
2
{
}
Returns the sum of squares of
y
–values.
11–10
1
σ
x
{
σ
}
Returns population standard
deviation of
x
–values:
n
x
x
i
÷
−
2
)
(
11–6
1
σ
y
{
σ
}
Returns population standard
deviation of
y
–values:
n
y
y
i
÷
−
2
)
(
11–6
1
θ
,
r
y
,
x
Polar to rectangular coordinates
.
Converts (
r
,
θ
) to (
x
,
y
).
4–9