Owner's Manual

896 Appendix A: Functions and Instructions
+ (add) « key
expression1 + expression2 ⇒
⇒⇒
⇒ expression
Returns the sum of expression1 and expression2 .
56 ¸ 56
ans(1)+4 ¸ 60
ans(1)+4 ¸ 64
ans(1)+4 ¸ 68
ans(1)+4 ¸ 72
list1 + list2 ⇒ list
matrix1
+ matrix2 ⇒ matrix
Returns a list (or matrix) containing the sums of
corresponding elements in
list1 and list2 (or
matrix1 and matrix2 ).
Dimensions of the arguments must be equal.
{22,p,p/2}! L1 ¸ {22 p p/2}
{10,5,p/2}! L2 ¸ {10 5 p/2}
L1+L2 ¸ {32 p+5 p}
ans(1)+{p,ë 5,ë p} ¸
{p+32 p 0}
[a,b;c,d]+[1,0;0,1] ¸
[]
a+1 b
c d+1
expression + list1 ⇒ list
list1 + expression ⇒ list
Returns a list containing the sums of expression
and each element in
list1 .
15+{10,15,20} ¸ {25 30 35}
{10,15,20}+15 ¸ {25 30 35}
expression + matrix1 ⇒ matrix
matrix1 + expression ⇒ matrix
Returns a matrix with expression added to each
element on the diagonal of
matrix1 . matrix1 must
be square.
Note: Use
.+ (dot plus) to add an expression to
each element.
20+[1,2;3,4] ¸
[
21 2
3 24
]
ì
(subtract)
| key
expression1 - expression2 ⇒
⇒⇒
⇒ expression
Returns expression1 minus expression2 .
6ì 2 ¸ 4
pì pà6 ¸
5ø p
6
list1 - list2 ⇒ list
matrix1
- matrix2 ⇒ matrix
Subtracts each element in list2 (or matrix2 ) from
the corresponding element in
list1 (or matrix1 ),
and returns the results.
Dimensions of the arguments must be equal.
{22,p,pà2}ì {10,5,pà2} ¸
{12 pì 5 0}
[3,4]ì [1,2] ¸ [2 2]
expression - list1 ⇒ list
list1 - expression ⇒ list
Subtracts each list1 element from expression or
subtracts
expression from each list1 element, and
returns a list of the results.
15ì {10,15,20} ¸ {5 0 -5}
{10,15,20}ì 15 ¸ {-5 0 5}