How do two equations multiply left by left equals right by right?
Measurement error propagation onto fitting-parameters
Filling area under line with lowest value
How can I make the following table quickly?
StreamPlot - streamlines are outside the plotting domain
Rank of singular, large, sparse matrices
Extract monomials with a certain structure from a given polynomial
How do two equations multiply left by left equals right by right?
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283845
eq1=x+2y==9 eq2=3x+2y==10 How to operate the multiplication of two equations to obtain: (x+2y)(3x+2y)==90 Simplify to obtain: <... [expression-manipulation] [algebraic-manipulation]
asked by csn899 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=68574 Score of 7 answered by David G. Stork https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9735
Score of 9 Measurement error propagation onto fitting-parameters https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283733
I have a dataset consisting of (t,y) Tuples, where each y has a known measurement error (standard deviation). I would like to fit a trapaze-function into the data and obtain the fitting paramaters and ... [probability-or-statistics] [fitting] [data] [physics] [error-propagation]
asked by Julius Debus https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92352
Score of 7 answered by JimB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19758
Score of 5 Filling area under line with lowest value https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283874
How to use Fill but only under the line which has the lowest value on plot? Consider following code: ... [plotting] [filling]
asked by Lechuu https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72560 Score
of 5 answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125
Score of 7 How can I make the following table quickly? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283780
Consider a table Tabb = RandomReal[{0, 1}, {3, 2}]; I want to make the following table: ... [list-manipulation] [performance-tuning] [syntax]
asked by John Taylor https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=41058 Score of
5 answered by Daniel Huber https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=46318
Score of 12 StreamPlot - streamlines are outside the plotting domain https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283721
I am trying to plot some streamlines, where the domain is given by a mesh. The results are good, but sometimes there are streamlines, that do not end at the boundary of the domain and are plotted a ... [plotting] [finite-element-method] [mesh]
asked by lemurman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86100 Score
of 5 answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111
Score of 2 Rank of singular, large, sparse matrices https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283946
I need to find the rank (and eventually do the Gaussian elimination) of a large, sparse, non-square matrix of integers. There are a few methods in Mathematica to find the rank of a non-square matrix (... [linear-algebra] [sparse-arrays]
asked by Albercoc https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72141
Score of 4 Extract monomials with a certain structure from a given polynomial
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283951
I have a long polynomial such as a x^2+ bx^2y+cx^2y^2 +d x^3y^4+e x^4y^3+f y^2+g xy^2 Consider an example problem as follows: I want to output the monomials (along ... [polynomials] [algebraic-manipulation]
asked by cleanplay https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=8107 Score
of 4 answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125
Score of 4