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larry
  • Member for 9 years, 10 months
  • Last seen more than a month ago
0 votes
1 answer
63 views

Is it possible to get rid of the square root in the solutions of the following symbolic quadratic equation?

1 vote
1 answer
160 views

How to factor a quartic equation whose coefficient has unknown parameters?

0 votes
0 answers
48 views

how to get the set of coefficient of a trig function in terms of the sines and cosines of a given angle

0 votes
0 answers
56 views

how to use subscripted variable such as a_i as the control of Manipulate?

0 votes
2 answers
127 views

How to get the normal vector of a planar curve pointing "outside" (its circle of curvature)?

2 votes
1 answer
128 views

Is it possible to view a notebook note in mind-map form?

0 votes
0 answers
37 views

how to record the viewpoint and viewvertical when using Manipulate Bookmarks?

0 votes
1 answer
93 views

any way to store the values of the controls of a Manipulate so that one can reuse them in the future excutions

2 votes
2 answers
175 views

How to split many controls in Manipulate into multiple columns (saw some potential bugs)

1 vote
1 answer
56 views

find the planar curve that passes two given points, whose tangent directions at these two points are also given

1 vote
2 answers
178 views

how to get rid of the denominator in the squareroot, that appears in the denominator?

3 votes
1 answer
217 views

any way to stop all the following evaluations?

1 vote
0 answers
82 views

How to draw sketches of objects using lines (curves) only

2 votes
1 answer
61 views

how to display Sin[Subscript[\alpha,i]/2] as $s_{\bar{\alpha}_i}$ using e.g., Makeboxes?

1 vote
2 answers
236 views

Extract different part of a polynomial with square root $a(x)+b(x)\sqrt{c(x)}$

0 votes
0 answers
92 views

to reduce the unknowns of a set of equations with several symbolic coefficients, e.g. using the GroebnerBasis

2 votes
3 answers
140 views

How can I substitute $s_x$ for Sin[x] in output to make an expression compact

1 vote
0 answers
70 views

fail to export to eps or pdf in vector form in 11.0 version [duplicate]

4 votes
1 answer
376 views

specify the same viewpoint for different figures

4 votes
1 answer
1k views

getting the coordinates of the boundary of a 3d region

0 votes
2 answers
622 views

NSolve does not calculate, just copies the input [duplicate]

1 vote
1 answer
384 views

Nsolve gives solutions with a small complex part which can't be eliminated by chop command

0 votes
1 answer
224 views

a puzzling thing happened to a simple problem on the rotation matrix

0 votes
1 answer
2k views

plot a surface using plot3d etc within a sphere

7 votes
2 answers
834 views

ContourPlot3d quality very poor

1 vote
1 answer
403 views

Need help on simplifying the integral of a square root of a polynomial

1 vote
2 answers
490 views

fail to export the 3d figures in eps form correctly in the 10.4.1.0 version

2 votes
1 answer
168 views

to control the existence and distribution of meshes along x y z separately in ParametricPlot3D or SphericalPlot3D

1 vote
0 answers
100 views

Region traced by the endpoints of all vectors given by a parametric expression [closed]

0 votes
1 answer
647 views

ParametricPlot3D etc. with parameters satisfying an implicit relation