Owner's Manual

904 Appendix A: Functions and Instructions
#
(indirection)
CATALOG
# varNameString
Refers to the variable whose name is
varNameString . This lets you create and modify
variables from a program using strings.
Program segment:
©
:Request "Enter Your Name",str1
:NewFold #str1
©
©
:For i,1,5,1
: ClrGraph
: Graph iù x
: StoPic #("pic" & string(i))
:EndFor
©
ô
(radian)
MATH/Angle menu
expression1 ô ⇒
⇒⇒
⇒ expression
list1 ô ⇒
⇒⇒
⇒ list
matrix1 ô ⇒
⇒⇒
⇒ matrix
In Degree angle mode, multiplies expression1 by
180/p. In Radian angle mode, returns
expression1
unchanged.
This function gives you a way to use a radian
angle while in Degree mode. (In Degree angle
mode,
sin(), cos(), tan(), and polar-to-
rectangular conversions expect the angle
argument to be in degrees.)
Hint: Use ô if you want to force radians in a
function or program definition regardless of the
mode that prevails when the function or program
is used.
In Degree or Radian angle mode:
cos((p/4)ô ) ¸
‡2
2
cos({0ô,(p/12)ô,ë pô }) ¸
{1
(
3
+1)ø
2
4
ë 1}
¡
(degree)
2“ key
expression ¡ ⇒
⇒⇒
⇒ value
list1 ¡ ⇒
⇒⇒
⇒ list
matrix1 ¡ ⇒
⇒⇒
⇒ matrix
In Radian angle mode, multiplies expression by
p/180. In Degree angle mode, returns
expression
unchanged.
This function gives you a way to use a degree
angle while in Radian mode. (In Radian angle
mode,
sin(), cos(), tan(), and polar-to-
rectangular conversions expect the angle
argument to be in radians.)
In Radian angle mode:
cos(45¡) ¸
‡2
2
cos({0,p/4,90¡,30.12¡}) ¥ ¸
{1 .707
... 0 .864...}