HP 33s Owner's Manual page 353

Rpn/alg scientific calculator
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Name
Σ+
Σ–
Σx
2
Σx
Σxy
Σy
Σy
2
σx
σy
θ , r
y,x
File name 33s-E-Manual-1008-Publication(1st).doc
Printed Date : 2003/10/8
Keys and Description
/
Accumulates (y, x) into
statistics registers.
¹ -
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.
º .
{  }
Returns the sum of y–values.
º .
{ 
}
Returns the sum of squares of
y–values.
º +
{σ  }
Returns population standard
deviation of x–values:
2
÷
(
x
x
)
n
i
º +
{σ  }
Returns population standard
deviation of y–values:
2
÷
(
y
y
)
n
i
º ±
Polar to rectangular coordinates.
θ ) to (x, y).
Converts (r,
Page : 386
Size : 13.7 x 21.2 cm
Page
11–2
11–2
11–11
11–11
11–11
11–11
11–11
11–6
11–6
4–9
Operation Index
1
1
1
1
1
1
1
G–3

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