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lumw
  • Member for 7 years
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4 votes
1 answer
200 views

How to extract Table data using regular expressions?

4 votes
3 answers
193 views

Simplify expression by a known expression substitution

4 votes
2 answers
173 views

Determine differential equation is periodic and find its period

3 votes
0 answers
207 views

FEM stress analysis by considering bending moment

2 votes
3 answers
348 views

How to remove quotation marks in Table list

2 votes
2 answers
98 views

Compare the coefficient in same part of the equations

2 votes
2 answers
95 views

Rearrange the parts of formula expression

2 votes
1 answer
107 views

FindRoot of matrix operation equations

2 votes
1 answer
357 views

Chaplygin sleigh problem: plotting the trajectory of the sleigh in the xy-plane

2 votes
2 answers
373 views

Is it possible to simplify expression in vector expression?

2 votes
1 answer
195 views

How to make animate in first person perspective? [closed]

2 votes
2 answers
139 views

How to realize NDSolve by NSolve with the implicit constraint equations?

2 votes
0 answers
59 views

Can I remove a line in ListPlot and put ticks on the right

1 vote
1 answer
189 views

Symbol compute of Euler-Lagrange equation

1 vote
1 answer
170 views

How to remove "triangle" line from GraphicsComplex objects

1 vote
0 answers
58 views

How to get List element after `[[ ]]` operation [closed]

1 vote
1 answer
497 views

Making StreamPlot draw phase plane streams near saddle points

1 vote
0 answers
114 views

Use self-defined operator symbol simplify formula

0 votes
0 answers
71 views

How to install AceFEM in MacOS?

0 votes
2 answers
59 views

How to keep Findroot accuracy when the vector equation has additional constraints

0 votes
1 answer
97 views

Can i plot different parameter differential equation phase plane in a line?

0 votes
1 answer
153 views

How to make object to be transparent?

0 votes
0 answers
246 views

How to solve "Coordinate should be a triple of numbers"?

0 votes
1 answer
112 views

Plot When y axis data very small

0 votes
1 answer
60 views

How to realize NDSolve by Solve?

0 votes
0 answers
201 views

The use of `NestList `

0 votes
2 answers
88 views

FindRoot with vector function

0 votes
1 answer
98 views

Plot coordinates from latitude and longitude pairs in Mathematica12

0 votes
1 answer
43 views

How to Plot 3-dimensional point to 2-dimensions?