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| <noinclude>
| | <includeonly>{{#if:{{{number|}}}|{{#ifeq:{{{number}}}|{{evalns|{{{number}}}}}|true|{{#ifeq:{{{number}}}|+{{evalns|{{{number}}}}}|true|{{#ifeq:{{{number}}}|({{evalns|{{{number}}}}})|true|false}}}}}}}}</includeonly><noinclude>{{documentation}}</noinclude> |
| {{pp-template|small=yes}}
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| ==Purpose==
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| Determines whether something is valid in a vertain context. Currently only implemented for determining if a number is within the precision that wikipedia expressions can handle.
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| ==Returns==
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| '''true''' if the argument is valid, '''false''' if it is not.
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| ==Examples==
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| :<code><nowiki>{{valid|number=A}}</nowiki></code> = {{valid|number=A}} ''(not a number)''
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| :<code><nowiki>{{valid|number=1234}}</nowiki></code> = {{valid|number=1234}}
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| :<code><nowiki>{{valid|number=+1234}}</nowiki></code> = {{valid|number=+1234}}
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| :<code><nowiki>{{valid|number=-1234}}</nowiki></code> = {{valid|number=-1234}}
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| :<code><nowiki>{{valid|number=(1234)}}</nowiki></code> = {{valid|number=(1234)}} ''(one pair of parenthesis is allowed)''
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| :<code><nowiki>{{valid|number=--1234}}</nowiki></code> = {{valid|number=--1234}} ''(incorrect sign use)''
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| :<code><nowiki>{{valid|number=1234567890}}</nowiki></code> = {{valid|number=1234567890}}
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| :<code><nowiki>{{valid|number=12345678901234567890}}</nowiki></code> = {{valid|number=12345678901234567890}} ''(too large)''
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| :<code><nowiki>{{valid|number=1.234567890}}</nowiki></code> = {{valid|number=1.234567890}}
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| :<code><nowiki>{{valid|number=1.2345678901234567890}}</nowiki></code> = {{valid|number=1.2345678901234567890}} ''(too many decimals)''
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| </noinclude><includeonly>{{#if:{{{number|}}}|{{#ifeq:{{{number}}}|{{evalns|{{{number}}}}}|true|{{#ifeq:{{{number}}}|+{{evalns|{{{number}}}}}|true|{{#ifeq:{{{number}}}|({{evalns|{{{number}}}}})|true|false}}}}}}}}</includeonly>
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