View source for Template:Val

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START ERROR CHECKING:
-->{{#ifeq:{{valid|number={{{1|0}}}}}|false|<!-- Is arg1 not a valid number?
  -->{{FormattingError|Error in {{tl|val}}: first argument is not a valid number or requires too much precision to display.|nocategory={{{nocategory|}}}}}<!--
-->|<!-- Is arg1 not a valid number? NO
  -->{{#ifeq:{{valid|number={{{2|0}}}}}|false|<!-- Is arg2 not a valid number?
    -->{{FormattingError|Error in {{tl|val}}: second argument is not a valid number or requires too much precision to display.|nocategory={{{nocategory|}}}}}<!--
  -->|<!-- Is arg2 not a valid number? NO
    -->{{#ifeq:{{valid|number={{{3|0}}}}}|false|<!-- Is arg3 not a valid number?
      -->{{FormattingError|Error in {{tl|val}}: third argument is not a valid number or requires too much precision to display.|nocategory={{{nocategory|}}}}}<!--
    -->|<!-- Is arg3 not a valid number? NO
      -->{{#ifexpr: {{{3|-1}}} >= 0|<!-- Is arg3 positive?
        -->{{FormattingError|Error in {{tl|val}}: third argument is not negative.|nocategory={{{nocategory|}}}}}<!--
      -->|<!-- Is arg3 positive? NO
        -->{{#ifeq:{{valid|number={{{e|0}}}}}|false|<!-- Is arg "e" not a valid number?
          -->{{FormattingError|Error in {{tl|val}}: exponent ('''e''') is not a valid number or requires too much precision to display.|nocategory={{{nocategory|}}}}}<!--
        -->|<!-- Is arg "e" not a valid number? NO
          -->{{#ifeq:{{{u|{{{ul|{{{up|{{{upl|}}}}}}}}}}}}|{{{up|{{{upl}}}}}}|<!-- Is arg "up" or "upl" specified but not arg "u" or "ul"?
            -->{{FormattingError|Error in {{tl|val}}: unit ('''u''' or '''ul''') is not specified but units per ('''up''' or '''upl''') is.|nocategory={{{nocategory|}}}}}<!--
          -->|<!-- Is arg "up" specified but not arg "u"? NO
            -->{{#ifeq:{{{u}}}{{{ul}}}|{{{u|}}}{{{ul|}}}|<!-- Is arg "u" and "ul" specified?
              -->{{FormattingError|Error in {{tl|val}}: unit ('''u''') and units with link ('''ul''') are both specified, only one is allowed.|nocategory={{{nocategory|}}}}}<!--
            -->|<!-- Is arg "u" and "ul" specified? NO
              -->{{#ifeq:{{{up}}}{{{upl}}}|{{{up|}}}{{{upl|}}}|<!-- Is arg "up" and "upl" specified?
                -->{{FormattingError|Error in {{tl|val}}: unit per ('''up''') and units per with link ('''upl''') are both specified, only one is allowed.|nocategory={{{nocategory|}}}}}<!--
              -->|<!-- Is arg "up" and "upl" specified? NO
END ERROR CHECKING, START OUTPUT
                -->{{{p|}}}<!-- If p (prefix) is defined, display it.
                -->{{#if: {{{1|}}}|<!-- Are there any arguments?
                  -->{{val/delimitnum|{{{1|}}}}}{{{end|}}}<!-- Output arg1, formatted.
                  -->{{#if: {{{2|}}}|<!-- Are there 2 or more arguments?
                    -->{{#if: {{{3|}}}|<!-- Are there 3 arguments?
                      --><span style="white-space:nowrap;margin-left:0.3em;">{{su|<!-- Uncertainty = +X -Y (3 arguments)
                        -->w=f|a=r|<!-- Fixed width, right aligned
                        -->p=+{{val/delimitnum|{{{2}}}}}{{{+errend|}}}|<!-- Output +arg2, formatted.
                        -->b={{val/delimitnum|{{{3}}}}}{{{-errend|}}}<!-- Output -arg3, formatted.
                      -->}}</span><!--
                    -->|<!-- Are there 3 arguments? NO
                      -->{{#if:{{#ifexpr: 0{{{2}}}}}|<!-- Second argument is "(number)"?
                        -->{{{2}}}<!-- Significance = (X)
                      -->|<!-- Second argument is "(number)"? NO
                        --><span style="white-space:nowrap;margin-left:0.3em;margin-right:0.15em">±</span>{{val/delimitnum|{{{2}}}}}{{{errend|}}}<!-- Uncertainty = ±X
                      -->}}<!-- End second argument is "(number)"?
                    -->}}<!-- End Are there 3 arguments?
                  -->}}<!-- End Are there 2 arguments?
                  -->{{#if:{{{e|}}}|<span style="white-space:nowrap;margin-left:0.25em;margin-right:0.15em">×</span>10{{su|p={{val/delimitnum|{{{e}}}}}}}}}<!-- e=exponent
                -->|<!-- Are there any arguments? NO
                  -->{{#if:{{{e|}}}|10{{su|p={{val/delimitnum|{{{e}}}}}}}}}<!-- e=exponent
                -->}}<!-- End Are there any arguments?
                -->{{#if:{{{u|}}}|&nbsp;{{val/units|{{{u}}}}}}}<!-- u=units
                -->{{#if:{{{ul|}}}|&nbsp;{{val/unitswithlink|{{{ul}}}}}}}<!-- u=units with link
                -->{{#if:{{{up|}}}|/{{val/units|{{{up}}}}}}}<!-- up=per units
                -->{{#if:{{{upl|}}}|/{{val/unitswithlink|{{{upl}}}}}}}<!-- up=per units with link
                -->{{{s|}}}<!-- If s (suffix) is defined, display it.
              -->}}<!-- End Is arg "up" and "upl" specified?
            -->}}<!-- End Is arg "u" and "ul" specified?
          -->}}<!-- End Is arg "up" specified but not arg "u"?
        -->}}<!-- End Is arg "e" not a valid number?
      -->}}<!-- End Is arg3 positive?
    -->}}<!-- End Is arg3 not a valid number?
  -->}}<!-- End Is arg2 not a valid number?
-->}}<!-- End Is arg1 not a valid number?
--></span></includeonly><noinclude>
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