79
Σ
* = function
| Where command: substitutes values for names in an
expression.*
ê
‘
symb
old
’ {
name
1
, ‘
symb
1
’,
nam
e2
,
‘
symb
2
’ … }
→ ‘
symb
new
’
< Tests whether one object is less than another object.*
>
x y
→ 0/1
> Tests whether one object is greater than another object.*
>ë
x y
→ 0/1
≥ Tests whether one object is greater than or equal to
another object.*
<Y
x y
→ 0/1
≤ Tests whether one object is less than or equal to another
object.*
<X
x y
→ 0/1
= Returns an equation formed from the two arguments.*
>æ
z
1
z
2
→
z
1
=
z
2
== Tests if two objects are equal.*
N
obj
1
obj
2
→ 0/1
≠ Tests if two objects are not equal.*
<W
obj
1
obj
2
→ 0/1
√ Returns the (positive) square root of the argument.*
r
z
→
∂ Gives the derivative of an expression, number, or unit
object with respect to a specified variable of
differentiation.*
>
‘
symb
1
’ ‘
name
’
→ ‘
symb
2
’
→ Creates local variables in a program.
>
L
obj
1
…
obj
n
→
π Returns the symbolic constant ‘π’ or its numerical
representation, 3.14159265359.*
<
→ ‘π’
Σ Calculates the value of a finite series.*
>î
‘
indx
’
x
init
x
final
smnd
→
x
sum
Name Description Access Inputs Outputs
z
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