HP Prime Graphing Wireless Calculator Manual do Utilizador descarregar pdf (Página 488)

100

101

LineTan(f(Var), [Var], Value)

Example:

LineTan(x

– x, 1) draws the line y=x-1; that is, the line tangent to y= x

– x at x=1

LineVert

Used in the Symbolic view of the Geometry app. Given a real number a or an expression that evaluates to a

real number a, draws the vertical line x=a.

LineVert(Expr) or LineVert(Real)

Example:

LineVert(2) draws the line which has the equation x=2

list2mat

Returns a matrix of n columns made by splitting a list into rows, each containing n terms. If the number of

elements in the list is not divisible by n, then the matrix is completed with zeros.

list2mat(List, Integer)

Example:

list2mat({1,8,4,9},1) returns

lname

Returns a list of the variables in an expression.

lname(Expr)

Example:

lname(exp(x)*2*sin(y)) gives [x,y]

lnexpand

Returns the expanded form of a logarithmic expression.

lnexpand(Expr)

Example:

lnexpand(ln(3*x)) gives ln(3)+ln(x)

440 Chapter 22 Functions and commands

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HP Prime Graphing Wireless Calculator Manual do Utilizador Página 488

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