home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC-SIG: World of Education
/
PC-SiG's World of Education.iso
/
run
/
2770
/
equator.h34
< prev
next >
Wrap
Text File
|
1990-04-04
|
481b
|
19 lines
34
SUMMATION
Summation is used to find the product or sum of a series of numbers.
The summation sign for addition is and its sum is written :
Sn = a
The product summation sign is and the product of its terms is :
Pn = a
where k is the index of summation and the sum or product of the
terms is expressed as 'a as k goes from 1 to n.