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Lu Zhao


Last seen: ungefär 2 år ago |  Active since 2020

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How to find all the numerical solutions of a nonpolynomial equation by using "vpasolve"
Hi, I am solving a nonpolynomial equation, and "vpasolve" keeps returns no solution or zero solutions. ...

mer än 2 år ago | 1 answer | 0

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answer

Question


Solve a symbolic equation in more than one variables
Hi, There is an ODE equation in terms of "u(r)". And there are several other variables in the equation, one of them is called "...

ungefär 3 år ago | 1 answer | 0

1

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Question


Help with simplifying a complex symbolic expression
There is a symbolic expression, and one of the variable "U_j0" can be cancled out. But when I use "simplify()" command, "U_j0"...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


Simplify a long symbolic expression
The variable "U_j0" can be canceled by simplifying the equation by hand, but it doesn't work by using command "simplify()". ...

ungefär 3 år ago | 0 answers | 0

0

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Question


Solve symbolic equation system
There is a symbolic equation system like this and wonder if any one could help me out by solving this equation system symbolical...

ungefär 3 år ago | 1 answer | 0

1

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How to simplify a symbolic equation, but still keep the denominator
Hi, Here is a simplified equation for my problem: I would like to cancle "b" only at both side .(Euqation is in the code, "eq...

nästan 4 år ago | 1 answer | 0

1

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Question


How can I solve a algebraic equation with "fzero" ?
Solve "w" from an agebraic equation f [w; k,m,S,a]=0 . (All other symbols are constant values. The equation is shown in the end ...

nästan 4 år ago | 1 answer | 0

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