| Key: |
MATH-263
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| Type: |
New Feature
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| Status: |
Closed
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| Resolution: |
Fixed
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| Priority: |
Minor
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| Assignee: |
Luc Maisonobe
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| Reporter: |
Gilles
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| Votes: |
0
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| Watchers: |
0
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| Resolution Date: |
29/Apr/09 07:10 PM
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Hi.
As was discussed in the ML (cf. '[math] "equals" in "Vector3D"' thread), it would be useful to add the various distance methods: L1 norm, L2 norm, L-infinity norm.
One suggestion has been to use an enum:
enum Norm { L_0, L_1, L_2, L_infinity };
static double distance(Vector3D a, Vector3D b, Norm n) { ... }
Another, to define several methods:
a.distance1(b) { ... }
a.distance(b) { ... }
a.distanceInf(b) { ... }
At the cost of longer typing (but maybe there are other advantages) the above could also be static.
Best,
Gilles
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Description
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Hi.
As was discussed in the ML (cf. '[math] "equals" in "Vector3D"' thread), it would be useful to add the various distance methods: L1 norm, L2 norm, L-infinity norm.
One suggestion has been to use an enum:
enum Norm { L_0, L_1, L_2, L_infinity };
static double distance(Vector3D a, Vector3D b, Norm n) { ... }
Another, to define several methods:
a.distance1(b) { ... }
a.distance(b) { ... }
a.distanceInf(b) { ... }
At the cost of longer typing (but maybe there are other advantages) the above could also be static.
Best,
Gilles |
Show » |
made changes - 29/Apr/09 07:10 PM
| Field |
Original Value |
New Value |
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Resolution
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Fixed
[ 1
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Assignee
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Luc Maisonobe
[ luc
]
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Status
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Open
[ 1
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Resolved
[ 5
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made changes - 07/Aug/09 09:13 AM
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Status
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Resolved
[ 5
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Closed
[ 6
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Various distance methods in "Vector3D"
