Usuari:Joanjoc/formatnum

Decimal and thousand separator Problem

Page to explain and test problem with {{formatnum:}}

• Catalan decimal separator: ","
• Catalan thousand separator: "."

Problem using formatnum

• {{formatnum:999}} -> 999
• {{formatnum:999,5}} -> 999,5
• {{formatnum:999.5}} -> 999,5 (Should it give error?)
• {{formatnum:1000}} -> 1.000
• {{formatnum:1000,5}} -> 1.000,5 (Should it be 1.000,5?)
• {{formatnum:1000.5}} -> 1.000,5 (Should it give error?)

Problem without using formatnum

Use of catalan decimal separator gives error in calculations if formatnum is not used.

• {{#expr: 999 * 1 }} -> 999
• {{#expr: 999,5 * 1 }} ->
• {{#expr: 999.5 * 1 }} -> 999.5
• {{#expr: 1000 * 1 }} -> 1000
• {{#expr: 1000,5 * 1 }} ->
• {{#expr: 1000.5 * 1 }} -> 1000.5

Problem using formatnum

Use of catalan decimal separator gives incorrect values where >= 1000 if formatnum is used

• {{#expr: {{formatnum:999}} * 1 }} -> 999
• {{#expr: {{formatnum:999,5}} * 1 }} ->
• {{#expr: {{formatnum:999.5}} * 1 }} ->
• {{#expr: {{formatnum:1000}} * 1 }} -> 1
• {{#expr: {{formatnum:1000,5}} * 1 }} ->
• {{#expr: {{formatnum:1000.5}} * 1 }} ->

Real examples

Problem with densisty in cities with > 1000 km2 of area (like Istanbul).

Joanjoc/formatnum

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Joanjoc/formatnum

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Possible solutions

• Make formatnum works correctly
• Make expr work with the decimal and thousand separator defined for each language