This site is supported by donations to The OEIS Foundation.

Template:Log-star

From OeisWiki
Jump to: navigation, search

The {{log-star}} mathematical formatting template displays a raised text-style low asterisk, since a superscript script-style asterisk is both too high and too small for some mathematical notation, e.g. for the iterated logarithm denoted log . It also links to iterated logarithm.

Code Result
{{log-star}} vs. log{{sup|*}} vs. [[iterated logarithm|log{{sup|*}}]] log  vs. log

Examples

Examples with valid arguments:

Code Result
{{math|{{log-star}}|&}}
log 
{{math|{{log-star|10}}|&}}
log 10
{{math|{{log-star|lg}}|&}}
lg 
{{math|{{log-star|2}}|&}}
log 2
{{math|{{log-star|lb}}|&}}
lb 
{{math|{{log-star|''e''}}|&}}
log e
{{math|{{log-star|ln}}|&}}
ln 
{{math|{{log-star|''a''}}|&}}
log a

The code

{{math|{{log-star|2}} 65536 {{=}} {{log^*|65536|2}}|&}}

yields

log 2 65536 = 4

Examples with invalid arguments:

Code Result
{{log-star|-1}} Log-star error: Base (first argument) must be greater than 1
{{log-star|0}} Log-star error: Base (first argument) must be greater than 1
{{log-star|1}} Log-star error: Base (first argument) must be greater than 1

Code




See also

  • {{Log^*}} (mathematical function template)