HP NW280AAABA Uživatelský manuál stáhnout pdf (Strana 423)

100

101

Functions and commands 417

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])

Example:

sturmseq(x^3-1,x) gives [1 [[1 0 0 -1] [3 0 0] 9] 1]

subMat Extracts from a matrix a sub matrix whose diagonal is defined

by four integers. The first two integers define the row and

column of the first element and the last two integers define the

row and column of the last element of the sub matrix.

subMat(Matrix, Int1, Int2, Int3, Int4)

Example:

subMat returns

suppress Given a list and an element, deletes the first occurrence of the

element in the list (if there is one) and returns the result.

suppress(List, Element)

Example:

suppress([0 1 2 3 2],2) returns [0 1 3 2]

surd Given an expression and an integer n, returns the expression

raised to the power 1/n.

surd(Expr, Integer)

Example:

surd(8,3) gives

2132







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