Arithmetic/Integer: Difference between revisions
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writeln('a/b = ', a div b, ', remainder ", a mod b); |
writeln('a/b = ', a div b, ', remainder ", a mod b); |
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end. |
end. |
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==[[Tcl]]== |
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[[Category:Tcl]] |
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puts "Please enter two numbers:" |
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gets stdin x |
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gets stdin y |
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puts " |
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$x + $y = [expr $x+$y] |
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$x - $y = [expr $x-$y] |
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$x * $y = [expr $x*$y] |
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$x / $y = [expr int($x / $y)] |
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$x mod $y = [expr $x % $y] |
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" |
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Since Tcl doesn't really know about the "type" of a variable, the "<tt>expr</tt>" command is used to declare whatever follows as an "expression". This means there is no such thing as "integer arithmetic" and hence the kludge <tt>int( $x / $y )</tt>. |
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Often, these operations would be performed in a way differently from what is shown here. For example to increase the variable "x" by the value of the variable "y", one would write |
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incr x $y |
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etc |
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==[[Toka]]== |
==[[Toka]]== |
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