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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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10
Task/Averages-Mean-angle/Tcl/averages-mean-angle-1.tcl Normal file
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proc meanAngle {angles} {
set toRadians [expr {atan2(0,-1) / 180}]
set sumSin [set sumCos 0.0]
foreach a $angles {
set sumSin [expr {$sumSin + sin($a * $toRadians)}]
set sumCos [expr {$sumCos + cos($a * $toRadians)}]
}
# Don't need to divide by counts; atan2() cancels that out
return [expr {atan2($sumSin, $sumCos) / $toRadians}]
}

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Task/Averages-Mean-angle/Tcl/averages-mean-angle-2.tcl Normal file
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# A little pretty-printer
proc printMeanAngle {angles} {
puts [format "mean angle of \[%s\] = %.2f" \
[join $angles ", "] [meanAngle $angles]]
}
printMeanAngle {350 10}
printMeanAngle {90 180 270 360}
printMeanAngle {10 20 30}