Hp Prime Graphing Wireless Calculator Manual do Utilizador descarregar pdf (Página 212)

208 Functions and commands

spline Given two lists or vectors (one for the x-values and one for the

y-values), as well as a variable and an integer degree, returns

the natural spline through the points given by the two lists. The

polynomials in the spline are in terms of the given variable and

are of the given degree.

spline(ListX, ListY, Var, Integer) or

spline(VectorX, VectorY, Var, Integer)

Example:

spline({0,1,2},{1,3,0},x,3) returns

sqrt Returns the square root of an expression.

sqrt(Expr)

Example:

sqrt(50) gives 5*sqrt(2)

stddev Returns the standard deviation of the elements of a list or a list

of the standard deviations of the columns of a matrix. The

optional second list is a list of weights.

stddev(List1, [List2]) or

stddev(Vector1, [Vector2]) or stddev(Matrix)

Example:

stddev({1,2,3}) returns

stddevp Returns the population standard deviation of the elements of a list

or a list of the population standard deviations of the columns of a

matrix. The optional second list is a list of weights.

stddevp(List1, [List2]) or

stddevp(Vector1, [Vector2]) or

stddevp(Matrix)

Example:

stddevp({1,2,3}) gives 1

sto Stores a real or string in a variable.

sto((Real or Str),Var)

sturmseq Returns the Sturm sequence for a polynomial or a rational

fraction.

sturmseq(Poly,[Var])

5–

------

⋅

-------

x⋅ 1

---

x 1–()

⋅

15–

----------

x 1–()

---

x 1–()⋅– 3+⋅++ +

-------

1 2 ... 207 208 209 210 211 212 213 214 215 216 217 ... 333 334

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