math

问题 Hey, I'm writing a formula with three indexes i,j,k. At the end of the line I'd like to put this: i=1,...,a j=1,...,b k=1,...,n But I'd like it in smaller font and stacked above each other. Can someone tell me a command which can accomplish this? \mbox can't do math mode, I think. 回答1: Try the \substack command: z_i = a_j + b_k \qquad \substack{ i=1,\dots,a \\ j=1,\dots,b \\ k=1,\dots,n} 来源： https://stackoverflow.com/questions/5009782/latex-stack-three-lines-in-math-mode

问题 I have 3 receivers (A, B and C), and some signal producing source (let's say sound or light) with an unknown location. Given the locations of A,B and C, and the time at which each receiver "heard" the signal, I'd like to determine the direction of the source. I understand there are ways to do so with TDoA multilateration/trilateration, however I'm having trouble implementing the calculation. There isn't a lot of clear, detailed information on this out there for those entirely new to the

问题 I have 3 receivers (A, B and C), and some signal producing source (let's say sound or light) with an unknown location. Given the locations of A,B and C, and the time at which each receiver "heard" the signal, I'd like to determine the direction of the source. I understand there are ways to do so with TDoA multilateration/trilateration, however I'm having trouble implementing the calculation. There isn't a lot of clear, detailed information on this out there for those entirely new to the

来源： https://stackoverflow.com/questions/59705590/powa-b-returning-1-less-than-the-actual-value-when-b-is-more-than-15

来源： https://stackoverflow.com/questions/59705590/powa-b-returning-1-less-than-the-actual-value-when-b-is-more-than-15

来源： https://stackoverflow.com/questions/63515866/only-size-1-arrays-can-be-converted-to-python-scalars

来源： https://stackoverflow.com/questions/63515866/only-size-1-arrays-can-be-converted-to-python-scalars

来源： https://stackoverflow.com/questions/15210704/ignore-imaginary-roots-in-sympy

来源： https://stackoverflow.com/questions/15210704/ignore-imaginary-roots-in-sympy

来源： https://stackoverflow.com/questions/36797819/go-divide-big-float