Bc (programming language): Difference between revisions

Revision as of 09:03, 19 July 2018

Revision as of 21:54, 13 November 2018

Line 160:

}

return ( e( y * l(x) ) )

}

</syntaxhighlight>

=== An equivalent "power" function in GNU bc ===

<syntaxhighlight lang="c">

# A function to return the integer part of a number

define int(number) {

auto oldscale

oldscale = scale

scale = 0

number /= 1 /* round number down */

scale = oldscale

return number

}

# Use the fact that number^exponent == e^(exponent*log(number))

define power(number,exponent) {

if (exponent == int(exponent)) {

return number ^ int(exponent)

} else {

return e( exponent * l(number) )

}

}

</syntaxhighlight>