Back to functions
sum
summation
Sums an expression from lower to upper limit. Works both numerically and algebraically.
Usage: nerdamer("sum(expression, index, lower, upper)")
Parameters
|
expression
expression
|
Returns the appropriate value if possible otherwise it returns the function with the simplified expression |
|
expression
index
|
The index of summation |
|
expression
lower
|
Starting index |
|
expression
upper
|
Ending index |
Returns
Expression
var x = nerdamer('sum(x+1, x, 1, 5)');
console.log(x.toString())
var y = nerdamer('sum(x+y, x, 1, 20)');
console.log(y.toString());