Multiplication tables: Difference between revisions
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Produce a formatted 12×12 multiplication table of the kind memorised by rote when in primary school. |
Produce a formatted 12×12 multiplication table of the kind memorised by rote when in primary school. |
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Only print the top half triangle of products. |
Only print the top half triangle of products. |
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=={{header|ALGOL 68}}== |
=={{header|ALGOL 68}}== |
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<lang Algol>main:( |
<lang Algol>main:( |
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12 144 |
12 144 |
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</pre> |
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=={{header|Tcl}}== |
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<lang tcl>puts " x\u2502 1 2 3 4 5 6 7 8 9 10 11 12" |
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puts \u0020\u2500\u2500\u253c[string repeat \u2500 48] |
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for {set i 1} {$i <= 12} {incr i} { |
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puts -nonewline [format "%3d" $i]\u2502[string repeat " " [expr {$i*4-4}]] |
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for {set j 1} {$j <= 12} {incr j} { |
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if {$j >= $i} { |
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puts -nonewline [format "%4d" [expr {$i*$j}]] |
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} |
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} |
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puts "" |
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}</lang> |
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Output: |
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<pre> |
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x│ 1 2 3 4 5 6 7 8 9 10 11 12 |
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──┼──────────────────────────────────────────────── |
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1│ 1 2 3 4 5 6 7 8 9 10 11 12 |
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2│ 4 6 8 10 12 14 16 18 20 22 24 |
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3│ 9 12 15 18 21 24 27 30 33 36 |
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4│ 16 20 24 28 32 36 40 44 48 |
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5│ 25 30 35 40 45 50 55 60 |
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6│ 36 42 48 54 60 66 72 |
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7│ 49 56 63 70 77 84 |
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8│ 64 72 80 88 96 |
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9│ 81 90 99 108 |
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10│ 100 110 120 |
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11│ 121 132 |
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12│ 144 |
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</pre> |
</pre> |
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