How do I call the sum of a tuple list?
I have made a tuple-list, but I can't seem to find the sum of the lists. Do I need to make a function for the sum, or can I call each list fst snd in the sum code?
let (startBoard : board) = ([0; 3; 3; 3; 3; 3], [0; 3; 3; 3; 3; 3])
How do I find the sum of the lists? I tried to make a sum function and to call fst and snd but can't seem to make it work...
let sum1 (fst : int list) : int =
let s = List.sum fst
Hope I made my self clear :)
function f# sum
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
add a comment |
I have made a tuple-list, but I can't seem to find the sum of the lists. Do I need to make a function for the sum, or can I call each list fst snd in the sum code?
let (startBoard : board) = ([0; 3; 3; 3; 3; 3], [0; 3; 3; 3; 3; 3])
How do I find the sum of the lists? I tried to make a sum function and to call fst and snd but can't seem to make it work...
let sum1 (fst : int list) : int =
let s = List.sum fst
Hope I made my self clear :)
function f# sum
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
add a comment |
I have made a tuple-list, but I can't seem to find the sum of the lists. Do I need to make a function for the sum, or can I call each list fst snd in the sum code?
let (startBoard : board) = ([0; 3; 3; 3; 3; 3], [0; 3; 3; 3; 3; 3])
How do I find the sum of the lists? I tried to make a sum function and to call fst and snd but can't seem to make it work...
let sum1 (fst : int list) : int =
let s = List.sum fst
Hope I made my self clear :)
function f# sum
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
I have made a tuple-list, but I can't seem to find the sum of the lists. Do I need to make a function for the sum, or can I call each list fst snd in the sum code?
let (startBoard : board) = ([0; 3; 3; 3; 3; 3], [0; 3; 3; 3; 3; 3])
How do I find the sum of the lists? I tried to make a sum function and to call fst and snd but can't seem to make it work...
let sum1 (fst : int list) : int =
let s = List.sum fst
Hope I made my self clear :)
function f# sum
function f# sum
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
edited Nov 16 '18 at 0:58
ljeabmreosn
571520
571520
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
asked Nov 13 '18 at 15:53
Aske M.Aske M.
849
849
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Don't know exactly what the 'board' type is, but this should work.
let sum (b: board) = List.sum (fst b), List.sum (snd b)
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
add a comment |
fst is a built-in function that returns the first item of a tuple of size two. Your example sum1 function is naming its first parameter as fst which is probably not what you want.
Try something like this:
let sum1 (startBoard : board) = List.sum (fst startBoard)
And with the power of currying, this can be shortened:
let sum1 = List.sum << fst
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Don't know exactly what the 'board' type is, but this should work.
let sum (b: board) = List.sum (fst b), List.sum (snd b)
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
add a comment |
Don't know exactly what the 'board' type is, but this should work.
let sum (b: board) = List.sum (fst b), List.sum (snd b)
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
add a comment |
Don't know exactly what the 'board' type is, but this should work.
let sum (b: board) = List.sum (fst b), List.sum (snd b)
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
Don't know exactly what the 'board' type is, but this should work.
let sum (b: board) = List.sum (fst b), List.sum (snd b)
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
edited Nov 13 '18 at 18:42
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
answered Nov 13 '18 at 16:50
gileCADgileCAD
1,39256
1,39256
add a comment |
add a comment |
fst is a built-in function that returns the first item of a tuple of size two. Your example sum1 function is naming its first parameter as fst which is probably not what you want.
Try something like this:
let sum1 (startBoard : board) = List.sum (fst startBoard)
And with the power of currying, this can be shortened:
let sum1 = List.sum << fst
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
add a comment |
fst is a built-in function that returns the first item of a tuple of size two. Your example sum1 function is naming its first parameter as fst which is probably not what you want.
Try something like this:
let sum1 (startBoard : board) = List.sum (fst startBoard)
And with the power of currying, this can be shortened:
let sum1 = List.sum << fst
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
add a comment |
fst is a built-in function that returns the first item of a tuple of size two. Your example sum1 function is naming its first parameter as fst which is probably not what you want.
Try something like this:
let sum1 (startBoard : board) = List.sum (fst startBoard)
And with the power of currying, this can be shortened:
let sum1 = List.sum << fst
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
fst is a built-in function that returns the first item of a tuple of size two. Your example sum1 function is naming its first parameter as fst which is probably not what you want.
Try something like this:
let sum1 (startBoard : board) = List.sum (fst startBoard)
And with the power of currying, this can be shortened:
let sum1 = List.sum << fst
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
answered Nov 13 '18 at 16:02
Chad GilbertChad Gilbert
30.4k35776
30.4k35776
add a comment |
add a comment |
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