Texas Instruments TINSPIRE Reference Guide - Page 80

>Polar, Vector, complexValue, complexVector, List1, Expr1, expression, ListOfCoeffs - update

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4Polar Vector 4Polar Note: You can insert this operator from the computer keyboard by typing @>Polar. Displays vector in polar form [r ±q]. The vector must be of dimension 2 and can be a row or a column. Note: 4Polar is a display-format instruction, not a conversion function. You can use it only at the end of an entry line, and it does not update ans. Note: See also 4Rect, page 81. complexValue 4Polar Displays complexVector in polar form. • Degree angle mode returns (r±q). • Radian angle mode returns reiq. complexValue can have any complex form. However, an reiq entry causes an error in Degree angle mode. Note: You must use the parentheses for an (r±q) polar entry. In Radian angle mode: In Gradian angle mode: In Degree angle mode: polyEval( ) polyEval(List1, Expr1) ⇒ expression polyEval(List1, List2) ⇒ expression Interprets the first argument as the coefficient of a descending-degree polynomial, and returns the polynomial evaluated for the value of the second argument. polyRoots() polyRoots(Poly,Var) ⇒ list polyRoots(ListOfCoeffs) ⇒ list The first syntax, polyRoots(Poly,Var), returns a list of real roots of polynomial Poly with respect to variable Var. If no real roots exist, returns an empty list: { }. Poly must be a polynomial in expanded form in one variable. Do not use unexpanded forms such as y2·y+1 or x·x+2·x+1 The second syntax, polyRoots(ListOfCoeffs), returns a list of real roots for the coefficients in ListOfCoeffs. Note: See also cPolyRoots(), page 23. Catalog > Catalog > Catalog > 74 TI-Nspire™ Reference Guide

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74
TI-Nspire™ Reference Guide
4
Polar
Catalog >
Vector
4
Polar
Note:
You can insert this operator from the computer keyboard by
typing
@>Polar
.
Displays
vector
in polar form [r
±q
]. The vector must be of
dimension 2 and can be a row or a column.
Note:
4
Polar
is a display-format instruction, not a conversion
function. You can use it only at the end of an entry line, and it does
not update
ans
.
Note:
See also
4
Rect
, page 81.
complexValue
4
Polar
Displays
complexVector
in polar form.
•
Degree angle mode returns (r
±q
).
•
Radian angle mode returns re
i
q
.
complexValue
can have any complex form. However, an re
i
q
entry
causes an error in Degree angle mode.
Note:
You must use the parentheses for an (r
±q
) polar entry.
In Radian angle mode:
In Gradian angle mode:
In Degree angle mode:
polyEval()
Catalog >
polyEval(
List1
,
Expr1
)
⇒
expression
polyEval(
List1
,
List2
)
⇒
expression
Interprets the first argument as the coefficient of a descending-degree
polynomial, and returns the polynomial evaluated for the value of the
second argument.
polyRoots()
Catalog >
polyRoots(
Poly
,
Var
)
⇒
list
polyRoots(
ListOfCoeffs
)
⇒
list
The first syntax,
polyRoots(
Poly
,
Var
)
, returns a list of real roots of
polynomial
Poly
with respect to variable
Var
. If no real roots exist,
returns an empty list: { }.
Poly
must be a polynomial in expanded form in one variable. Do not
use unexpanded forms such as y
2
·y+1 or x·x+2·x+1
The second syntax,
polyRoots(
ListOfCoeffs
)
, returns a list of real
roots for the coefficients in
ListOfCoeffs.
Note:
See also
cPolyRoots()
, page 23.