Unit conversion from -1 Celsius to Kelvin

Unit conversion from -1 Celsius to Kelvin - Temperature Unit Conversion - Сообщения

#1 Опубликовано: 09.12.2025 05:44:16
Chulsoon Shin

Chulsoon Shin

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In Smath Solver, I guess -1℃ is treated as -1 × 1℃ → -1 × (273.15K + 1K) → -274.15K, not (273.15K - 1K) → 272.15K.

Is there any way to put in the negative sign, not minus?

Temperature_Unit_Conversion.png
#2 Опубликовано: 09.12.2025 05:48:33
Chulsoon Shin

Chulsoon Shin

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I found the caution with negative numerical values in the Introduction Manual.
-1℃ to be put as (-1)℃ for correct calculation.
#3 Опубликовано: 09.12.2025 13:45:52
Martin Kraska

Martin Kraska

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I don't know what introduction manual you refer to (there is no official one), yet this one probably would do: https://doi.org/10.25933/opus4-3370. Section 3.6 is on temperature units, section 3.5 is on frequency and angular velocity. Both they handle common pitfalls for new users.
Technische Mechanik mit SMath Studio: https://link.springer.com/book/10.1007/978-3-658-50592-9
#4 Опубликовано: 16.03.2026 07:55:56
DaisyJohnston

DaisyJohnston

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Wrote

I don't know what introduction manual you refer to (there is no official one), yet this one probably would do: https://doi.org/10.25933/opus4-3370. Section 3.6 is on temperature units, section 3.5 is on frequency and angular velocity. Both they handle common pitfalls for new users.



Thanks for the link! After reading section 3.6, I see why the software behaves this way. However, for quick calculations, is there a standard 'workaround' you recommend to treat 1°C as 272.15K without manually adding/subtracting 273.15 every time?
#5 Опубликовано: 16.03.2026 12:31:27
overlord

overlord

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As already told in #2 in this topic, you can use paranthesis.

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