annotate default_arg.m @ 1031:2ef20d00b386 feature/advectionRV

For easier comparison, return both the first order and residual viscosity when evaluating the residual. Add the first order and residual viscosity to the state of the RungekuttaRV time steppers
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 17 Jan 2019 10:25:06 +0100
parents 48b6fb693025
children
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48b6fb693025 Initial commit.
Jonatan Werpers <jonatan@werpers.com>
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1 function default_arg(s, val)
48b6fb693025 Initial commit.
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2 if evalin('caller',sprintf('~exist(''%s'',''var'') || isempty(%s)',s,s))
48b6fb693025 Initial commit.
Jonatan Werpers <jonatan@werpers.com>
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3 assignin('caller',s,val)
48b6fb693025 Initial commit.
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4 end
48b6fb693025 Initial commit.
Jonatan Werpers <jonatan@werpers.com>
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5 end