Talk:Green Bean: Difference between revisions
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I am trying to calculate the impact of Speed-Gro on the days to maturity. The formula I am using is the greater of [Days to Maturiity]-RoundUp([Days to Maturity]*10%). This works for Deluxe Speed-Gro and Hyper Speed-Gro, but when I compare the basic speed-gro calc to the chart on the green bean page I calculate 9 days as opposed to the 8 days the chart says it should take. What am missing in the calculation? | I am trying to calculate the impact of Speed-Gro on the days to maturity. The formula I am using is the greater of [Days to Maturiity]-RoundUp([Days to Maturity]*10%). This works for Deluxe Speed-Gro and Hyper Speed-Gro, but when I compare the basic speed-gro calc to the chart on the green bean page I calculate 9 days as opposed to the 8 days the chart says it should take. What am missing in the calculation? [[User:RedHotMegma|RedHotMegma]] ([[User talk:RedHotMegma|talk]]) 23:39, 10 April 2021 | ||
:A mixture of imprecision and rounding. decimal number 0.1 is not representable in binary floating-point, so 0.1 x 10 is not actually 1 but 1.00000001490116119384765625 decimal. the game then rounds this up to 2, because it's technically "bigger than 1". for more details look up floating-point arithmetic on wikipedia. [[User:Dubesor|Dubesor]] ([[User talk:Dubesor|talk]]) 04:06, 11 April 2021 (UTC) | :A mixture of imprecision and rounding. decimal number 0.1 is not representable in binary floating-point, so 0.1 x 10 is not actually 1 but 1.00000001490116119384765625 decimal. the game then rounds this up to 2, because it's technically "bigger than 1". for more details look up floating-point arithmetic on wikipedia. [[User:Dubesor|Dubesor]] ([[User talk:Dubesor|talk]]) 04:06, 11 April 2021 (UTC) | ||
Revision as of 17:34, 11 April 2021
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I am trying to calculate the impact of Speed-Gro on the days to maturity. The formula I am using is the greater of [Days to Maturiity]-RoundUp([Days to Maturity]*10%). This works for Deluxe Speed-Gro and Hyper Speed-Gro, but when I compare the basic speed-gro calc to the chart on the green bean page I calculate 9 days as opposed to the 8 days the chart says it should take. What am missing in the calculation? RedHotMegma (talk) 23:39, 10 April 2021
- A mixture of imprecision and rounding. decimal number 0.1 is not representable in binary floating-point, so 0.1 x 10 is not actually 1 but 1.00000001490116119384765625 decimal. the game then rounds this up to 2, because it's technically "bigger than 1". for more details look up floating-point arithmetic on wikipedia. Dubesor (talk) 04:06, 11 April 2021 (UTC)