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Calkin-Wilf sequence: Difference between revisions
→{{header|Maxima}}
imported>Maxima enthusiast No edit summary |
imported>Maxima enthusiast |
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Line 1,787:
cf_len:length(cf_list),
if oddp(cf_len) then cf_list:reverse(cf_list) else cf_list:reverse(append(at(cf_list,[cf_list[cf_len]=cf_list[cf_len]-1]),[1])),
makelist(lambda([x],if oddp(x) then makelist(1,j,1,cf_list[x]) else makelist(0,j,1,cf_list[x]))(i),i,1,length(cf_list)), /* decoding part begins here */
apply(append,%%),
apply("+",makelist(2^i,i,0,length(%%)-1)*reverse(%%)))$
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