10 results for “sinc”
Whole years elapsed since a birth date.
Seconds elapsed since 1970-01-01 00:00:00 UTC (the epoch).
The ideal interpolation kernel for reconstructing sampled signals.
Since 25 = 100 ÷ 4, multiply by 100 and divide by 4 for instant results.
Since 125 = 1000 ÷ 8, multiplying by 125 is just adding three zeros and dividing by 8.
Since 75 = 3 × 25, multiply by 3 and then by 25 (which is ×100 ÷ 4).
Since 37 × 3 = 111, multiply by 37 by first dividing the other number by 3, then multiplying by 111. Works perfectly when the number is divisible by 3.
Dividing by 25 = multiplying by 4 then dividing by 100. Much simpler for mental math since multiplying by 4 (double twice) is easy.
Divide by 8 by halving the number three times in a row. Since 8 = 2³, three successive halvings give the exact answer.
Since 16 = 2⁴, multiply by 16 by doubling the number four times in a row.