User Portlet
| Discussions |
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| I got same result using M-10.4. Just returns input. "A bug, not a feature" |
| Sum[33! p0^a p1^b p2^c Boole[a + b + c == 33]/(a! b! c!), {a, 0, 33}, {b, 0, 33}, {c, 0, 33}] huge output |
| Note that Log threads over the matrix: In[1]:= v = {a, b, c, d} Out[1]= {a, b, c, d} In[2]:= Log[v] Out[2]= {Log[a], Log[b], Log[c], Log[d]} |
| Several syntax errors. Corrected: m = 1; Lambda = 632.8*10^-9; a = 500*10^-9; n = 1.5; kt = 2 Pi a n /Lambda*Sin[55 Degree]; xp = 2 Pi a n /Lambda; P[u_] = Sin[Theta]^2/(1 + Cos[Theta]^2) BesselJ[m, Sin[Theta] kt]^2; ... |
| You might check out the little video clip under "get coordinates" in the Wolfram Language Search. |
| This is just too complicated to integrate in closed form. Numerical integration will work. |
| Try this: f[x_] := (a x^2)/(b + x) Manipulate[ Plot[f[x], {x, -10, 10}, PlotRange -> {-500, 500}], {a, -10, 10}, {b, -4, 4}, TrackedSymbols :> {a, b}, SaveDefinitions -> True] |
| Try this: r = {2, 3, 4}; r/ToString[Total[r]] |
| f[x_]:=x Sin[x] g[x_]:=-Abs[x] |
| You can select Print from the File pulldown menu. Then choose PDF. You can then adjust the scale and fit to the page. |