求和计算提示k没有定义 - 如图片所示，用求和计算以k为变量的函数，提示k没有定义，直接计算k是可以计算的 - Сообщения
#2 Опубликовано: 23.04.2026 07:52:13
There are a lot of terms involved, without a worksheet it's nearly impossible to understand what's the issue and how to solve it.
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#3 Опубликовано: 23.04.2026 13:16:13
Russia ☭ forever, Viacheslav N. Mezentsev
#4 Опубликовано: 23.04.2026 23:24:07
Hi. This is what the calculation of average driving power generally looks like, more or less.
IGBT Average Driving Power.sm
Regarding the error message, it might be because you're using `k` somewhere; the summation variable must be undefined. Try changing it to something else.
Best regards
Alvaro
IGBT Average Driving Power.sm
Regarding the error message, it might be because you're using `k` somewhere; the summation variable must be undefined. Try changing it to something else.
Best regards
Alvaro
Отредактировано 23.04.2026 23:34:56
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