SL9
function s=signum(x)
if(x>0)
s='positive'
elseif(x<0)
s='negative'
else
s=0
end
endfunction
-->exec('C:\Users\5910110700\Documents\3.sce', -1)
-->signum(-123)
ans =
negative
-->signum(123)
ans =
positive
-->signum(0)
ans =
0.
if(x>0)
s='positive'
elseif(x<0)
s='negative'
else
s=0
end
endfunction
-->exec('C:\Users\5910110700\Documents\3.sce', -1)
-->signum(-123)
ans =
negative
-->signum(123)
ans =
positive
-->signum(0)
ans =
0.
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