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1.
11
2 Expandx y5 x5 5 x4 y 10 x3 y2 10 x2 y3 5 x y4 y5 Abs 4 4 Sin 0 Cos 1 Log 1 Log10, 100 2 comment Plot[f[x], {x, xmin, xmax}]; Solve[eqn,x]; D[f[x],x] PlotSinx, x, 10, 10 1.0 0.5 10 5 5 10 0.5 1.0 x 2 3 x y x w x : ctrl 2 x2 : ctrl ^ x : ctrl 2 then x x2 : ctrl _ 2100 1 267 650 600 228 229 401 496 703 205 376 12 345 5555 2469 1111
2.
2
1st.nb 0.239998 0.239998 0.12 10 ^ 11 1.2 1010 1 2 0.5 4 2.75 2 1 4 0.5 2.75 3 0.7 i 3 0.7 i N[x] x Rationalize[x] x NPi, 11 3.1415926536 Rationalize, 0.000001 355 113 Pi E Degree ° i i Infinity Infinity
3.
1st.nb
3 NGoldenRatio 1.61803 NumberForm[expr, n] n expr ScientificForm[expr] expr EngineeringForm[expr] expr NPi ^ 30, 30 8.21289330402749581586503585434 1014 NumberFormNPi ^ 30 8.21289 1014 ScientificFormNPi ^ 30 8.21289 1014 EngineeringFormNPi ^ 30, 7 821.2893 1012 x3 3 x^2 2 11 u, v, w 1, 2, 3 1, 2, 3 2u3vw 11 u . 2u3vw 92u x . f x21 x 1 2 f . x 1 3 2
4.
4
1st.nb f . x 2 2 f . f x y x y ^ 2 . x 3, y 1 a 4 a 2 a2 f . fx_ x Sinx x ^ 2 x2 x Sinx f3 9 3 Sin3 Plotft, t, 0, 2 5 4 3 2 1 0.5 1.0 1.5 2.0 Clearf Plotft, t, 0, 2 1.0 0.8 0.6 0.4 0.2 0.5 1.0 1.5 2.0 Removef
5.
1st.nb
5 Plotft, t, 0, 2 1.0 0.8 0.6 0.4 0.2 0.5 1.0 1.5 2.0 fx_, y_ x y y Cosx x y y Cosx f2, 3 6 3 Cos2 f . fx_, y_ : x y y Cosx f2, 3 6 3 Cos2 f . fx_ : x 1 ; x 0 fx_ : x ^ 2 ; x 1 && x 0 fx_ : Sinx ; x 1 Plotfx, x, 2, 2 1.0 0.5 2 1 1 2 0.5 1.0
6.
6
1st.nb Ifx 0, x 1, Ifx 1, Sinx, x ^ 2; Plotfx, x, 2, 2 1.0 0.5 2 1 1 2 0.5 1.0 1, 2, 3 1, 2, 3 1 x x^ 1 2 x, 1 2 x x2 , 1 3 x x3 D, x 2, 2 2 x, 3 3 x2 . x 1 2, 4, 6 Tablex i, i, 2, 6 2 x, 3 x, 4 x, 5 x, 6 x Tablex ^ 2, 4 x2 , x2 , x2 , x2 Range10 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Range8, 20, 2 8, 10, 12, 14, 16, 18, 20 t Table2 i j, i, 1, 3, j, 3, 5 5, 6, 7, 7, 8, 9, 9, 10, 11 TableFormt 5 6 7 7 8 9 9 10 11
7.
1st.nb
7 t2 7, 8, 9 Expandx y ^ 4 x y ^ 2 x5 4 x4 y 6 x3 y2 x4 y2 4 x2 y3 4 x3 y3 x y4 6 x2 y4 4 x y5 y6 Factor x y4 x y2 ShortExpand1 x ^ 30 1 30 x 435 x2 4060 x3 27 405 x4 142 506 x5 593 775 x6 17 593 775 x24 142 506 x25 27 405 x26 4060 x27 435 x28 30 x29 x30 Short, 3 1 30 x 435 x2 4060 x3 27 405 x4 142 506 x5 593 775 x6 2 035 800 x7 5 852 925 x8 14 307 150 x9 30 045 015 x10 54 627 300 x11 86 493 225 x12 5 86 493 225 x18 54 627 300 x19 30 045 015 x20 14 307 150 x21 5 852 925 x22 2 035 800 x23 593 775 x24 142 506 x25 27 405 x26 4060 x27 435 x28 30 x29 x30 x 2; y 9; xy False 3^2 y 1 True LogicalExpand3 xx ^ 2 yy 1 && 3 ^ 2 yy yy 9 && 3 xx2 1 yy && || Xor If x . SimplifyExpand2 x ^ 4 1 x ^ 4 3 x ^ 3 3 x3 2 3 x x2 4 p1 a ^ 2 3 a 2; p2 a 1; p1 p2 3 4 a a2 p1 p2 1 2 a a2
8.
8
1st.nb p1 p2 1 a 2 3 a a2 p1 p2 2 3 a a2 1a Cancelp1 p2 2a PolynomialQuotientx ^ 2 2 x 2, x 1, x 1x PolynomialRemainderx ^ 2 2 x 2, x 1, x 1 Rootsx ^ 2 3 x 2 0, x x 1 x 2 Solve x 1, x 2 FindRoot3 Cosx Logx, x, 1 x 1.44726 FindRoot3 Cosx Logx, x, 5 x 5.30199 Plot3 Cosx, Logx, x, 0, 10 2 2 4 6 8 10 2 4 6 8
9.
1st.nb
9 Solvex ^ 3 5 x 3 0, x 27 2229 13 x 5 , 13 1 2 2 3 27 2229 323 1 3 27 2229 5 1 3 13 x , 1 2 223 3 27 2229 2 323 13 1 3 27 2229 5 1 3 13 x 1 2 3 27 2229 2 323 223 13 N x 0.5641, x 0.28205 2.28881 , x 0.28205 2.28881 x .; y .; NSolve2 x y 0, x 3 y 3 0, x, y x 0.6, y 1.2 Solvea x ^ 2 b x c 0, x x , x b b2 4 a c b b2 4 a c 2a 2a Reducea x ^ 2 b x c 0, x x b b2 4 a c b b2 4 a c a 0 && x 2a 2a c 0 && b 0 && a 0 c a 0 && b 0 && x b Solve, Roots Reduce Sc x ^ 2 y x2 y
10.
10
1st.nb Solvex ^ 4 b x ^ 2 c 0, Sc, x, y y , y , 1 b b2 4 c 1 b b2 4 c b b2 4 c ,x b b2 4 c ,x 2 2 2 2 y b2 4 c , 1 b 1 b b2 4 c ,x 2 2 2 y b2 4 c 1 b 1 b b2 4 c ,x 2 2 2 Sc . Sc Sinx ^ 2 Cosx ^ 2 1 Cosx2 Sinx2 1 SolveCosx 2 Sinx 1, Sc, Sinx, Cosx Sinx 0, Cosx 1, Sinx 4 3 , Cosx 5 5 Sumi, i, 1, 9, 2 25 Sum2 i 1, i, 1, 5 25 Sumi j, i, 1, 5, j, 1, 5 225 Producti j, i, 1, 5, j, 1, 5 619 173 642 240 000 000 000 NSum1 i ^ 2, i, 1, Infinity 1.64493 NSum1 i ^ 2, i, 1, Infinity, 2 1.2337 NProduct1 i ^ 2, i, 1, Infinity, 2 0.
11.
1st.nb
11 gx_ Sinx ^ 2 1 x Plotgx, x, 0, 2 Pi Sinx2 1x 0.4 0.3 0.2 0.1 1 2 3 4 5 6 0.1 0.2 0.3 Plotgx, x, 0, 2 Pi, AspectRatio 1 2 0.4 0.3 0.2 0.1 1 2 3 4 5 6 0.1 0.2 0.3 Plotgx, x, 0, 2 Pi, Ticks none
12.
12
1st.nb Plotgx, x, 0, 2 Pi, AxesLabel "time", "height" height 0.4 0.3 0.2 0.1 time 1 2 3 4 5 6 0.1 0.2 0.3 Plotgx, x, 0, 2 Pi, AxesOrigin 3, 0, PlotLabel "Decay Waves" Decay Waves 0.4 0.3 0.2 0.1 0 1 2 4 5 6 0.1 0.2 0.3 Plotgx, x, 0, 2 Pi, Ticks 0, Pi 2, 3 Pi 2, 2 Pi, Automatic 0.4 0.3 0.2 0.1 3 2 2 2 0.1 0.2 0.3
13.
1st.nb
13 Plotgx, x, 0, 2 Pi, PlotRange 0.6, 0.6 0.6 0.4 0.2 1 2 3 4 5 6 0.2 0.4 0.6 g1 Plotgx, x, 0, 2 Pi; g2 Plotx Cosx 12, x, 0, 2 Pi; Showg1, g2 0.4 0.3 0.2 0.1 1 2 3 4 5 6 0.1 0.2 0.3 ListPlot[{y1, y2, … ..}] x 1 2… y1, y2, … ListPlot[{{x1, y1}, {x2, y2}, … ..}] xi, yi ListPlot[List, PlotJoined -> True] ParametricPlot[{fx,fy},{t,tmin,tmax}] ParametricPlot[{{fx,fy},{gx,gy},….},{t,tmin,tmax}] ParametricPlot[{fx,fy},{t,tmin,tmax},AspectRatio->Automatic]
14.
14
1st.nb ParametricPlotSin3 t Cost, Sin3 t Sint, t, 0, 2 Pi 0.5 0.5 0.5 0.5 1.0 ParametricPlotSin3 t Cost, Sin3 t Sin2 t, Sint, Cost, t, 0, 2 Pi, AspectRatio Automatic 1.0 0.5 1.0 0.5 0.5 1.0 0.5 1.0 List1 Tablei ^ 3 i, i, 10 2, 10, 30, 68, 130, 222, 350, 520, 738, 1010
15.
1st.nb
15 ListPlotList1 1000 800 600 400 200 2 4 6 8 10 ListPlotList1, PlotJoined True 1000 800 600 400 200 2 4 6 8 10 g1 GraphicsText"left", 1, 0, Text"right", 1, 0, Text"above", 0, 1, Text"below", 0, 1, PointSize0.4, Point0, 0, PlotRange All above left right below
16.
16
1st.nb LineTablen, 1 ^ n, n, 6 Line1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1 Graphics ShowGraphics, Axes True 1.0 0.5 2 3 4 5 6 0.5 1.0 St : TableRectanglex, 0, x 0.08, Sinx, x, 0, 2 Pi, 0.15 ShowGraphicsSt, Axes True 1.0 0.5 1 2 3 4 5 6 0.5 1.0
17.
1st.nb
17 GraphicsCircle0, 0, 1, Axes True 1.0 0.5 1.0 0.5 0.5 1.0 0.5 1.0 ShowGraphicsCircle0, 0, 5, 3, Axes True 3 2 1 4 2 2 4 1 2 3
18.
18
1st.nb GraphicsCircle0, 0, 1, 0, Pi 2, Axes True 1.0 0.8 0.6 0.4 0.2 0.2 0.4 0.6 0.8 1.0 ShowGraphicsCircle0, 0, 5, 3, Pi 2, 3 Pi 2, Axes True, AspectRatio Automatic 3 2 1 5 4 3 2 1 1 2 3
19.
1st.nb
19 GraphicsDisk0, 0, 1, Axes True 1.0 0.5 1.0 0.5 0.5 1.0 0.5 1.0 GraphicsRaster0, 0, 1, 0, 1, 0, 1, 0, 0
20.
20
1st.nb PlotSinx, Sin2 x, Sin3 x, x, 0, 2 Pi, PlotStyle RGBColor0.9, 0, 0, RGBColor0, 0.9, 0, RGBColor0, 0, 0.9 1.0 0.5 1 2 3 4 5 6 0.5 1.0 v1 1, 0, 0, 1, 1, 0, 0, 1 1, 0, 0, 1, 1, 0, 0, 1 ShowGraphicsHue0.2, Polygon3 v1, Hue0.4, Polygon2 v1, Hue0.9, Polygonv1, AspectRatio Automatic TablePointn ^ 2, Primen, n, 5;
21.
1st.nb
21 ShowGraphicsPointSize0.1, , PlotRange All TableGraphicsAbsolutePointSized, Point0, 0, d, 0.5, 2, 7, 15 ,
22.
22
1st.nb , ,
23.
1st.nb
23 Show Graphics AbsoluteThicknessd, Line0, 0, 1, d, d, 5, Table Line0, 5, 1, 0
24.
24
1st.nb PlotSinx ^ 2, x, Pi, Pi 1.0 0.5 3 2 1 1 2 3 0.5 1.0 Show, PlotRange 1, 2, Frame True 2.0 1.5 1.0 0.5 0.0 0.5 1.0 3 2 1 0 1 2 3 f1 Plotx Sin2 x Pi, x, 0, 4 Pi; f2 Plotx Cos2 x, x, 0, 4 Pi; Showf1, f2 10 5 2 4 6 8 10 12 5 10
25.
1st.nb
25 ShowGraphicsArray, f1, , f2 10 10 5 5 2 4 6 8 10 12 2 4 6 8 10 12 5 5 10 10 10 10 5 5 2 4 6 8 10 12 2 4 6 8 10 12 5 5 10 10 t1 Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4
26.
26
1st.nb Show, PlotRange 0, 0.5 Showt1, AxesLabel "time", "depth", "Value", FaceGrids All
27.
1st.nb
27 Showt1, Axes False, Boxed False Showt1, Mesh None
28.
28
1st.nb Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4, Mesh None mesh plot3D shading lighting false Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4, Shading False Plot3D::optx : Unknown option Shading in Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4, Shading False. Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4, Shading False Plot3DSinx y Cosx y, x, 0, 4, y, 0, 4, Lighting None
29.
1st.nb
29 TableSinx y RandomReal, 0.15, 0.15, x, 0, 3 Pi 2, Pi 15, y, 0, 3 Pi 2, Pi 15 MyTable : ListPlot3DMyTable ParametricPlot3D3 Cos4 t 1, Cos2 t 3, 4 Cos2 t 5, t, 0, Pi 1.0 0.5 2 0.0 0.5 0 1.0 2 4 2 0 2 4
30.
30
1st.nb r, Exp r ^ 2 Cos4 r ^ 2 Cost, Exp r ^ 2 Cos4 r ^ 2 Sint, r, 1, 1, t, 0, 2 Pi ParametricPlot3D LimitSqrtx ^ 2 2 3 x 6, x Infinity 1 3 LimitSinx ^ 2 x ^ 2, x 0 1 LimitLogx x, x 0, Direction 1 DExpx Sinx, x x Cosx x Sinx DExpx Sinx, x, 2 2 x Cosx DSina x, x a Cosa x
31.
1st.nb
31 DSina x, x, NonConstants a Cosa x a x Da, x, NonConstants a fx_, y_ x ^ 2 y y ^ 2 x2 y y2 Dfx, y, x 2xy Dfx, y, y x2 2 y Dfx, y, x, 2 2y Dfx, y, y, 2 2 Dfx, y, x, y 2x Dx f3x, x f3x x f3 x Df3f4x, x f3 f4x f4 x DExpx Sinx, x . x 2 2 Cos2 2 Sin2 Dtx ^ 2 y ^ 2, x 2 x 2 y Dty, x Dfx ^ 2 y ^ 2 Dfx2 y2 Dtx ^ 2 xy ^ 3 yz, Constants z 2 x Dtx, Constants z 3 xy2 Dtxy, Constants z Dtyz, Constants z Dtx ^ 2 xyx yx z 2 x Dtx Dtz yx Dtx xy x z Dtx y x u 1 u2 u 2 11 u2 1 u2 1 1 11 1 u2 3 11 ArcTanh 11 121 3
32.
32
1st.nb SinSinx Sinx Integrate::ivar : Sinx is not a valid variable. SinSinx Sinx SinSinx x SinSinx x a x b x c x 2 b x2 a x3 cx 2 3 x e x 6 2 ax 4 280 eax 3 1 x 1 x4 1 3 1 x 1 xp , Integratexp , x, 1, , Assumptions Rep 1 1 IfRep 1, 1 p NIntegrateSinSinx, x, 0, Pi 1.78649 NIntegrate1 SqrtAbsx, x, 1, 0, 1 4. NIntegrateExp x ^ 2, x, 0, Infinity 0.886227 DSinx y ^ 2, x, x, y 2 x y5 Cosx y2 4 y3 Sinx y2 DSinx y ^ 2, x, 2, y 2 x y5 Cosx y2 4 y3 Sinx y2 Dx ^ 2 y ^ 2, x, NonConstants y 2 x 2 y Dy, x, NonConstants y
33.
1st.nb
33 Dtx2 y3 2 x y3 Dtx 3 x2 y2 Dty z x3 y x2 y2 3 x y2 ; Dtz 3 x2 y Dtx 3 y2 Dtx 2 x y2 Dtx x3 Dty 6 x y Dty 2 x2 y Dty CollectDtz, Dtx, Dty 3 x2 y 3 y2 2 x y2 Dtx x3 6 x y 2 x2 y Dty . Dtx dx, Dty dy dy x3 6 x y 2 x2 y dx 3 x2 y 3 y2 2 x y2 Dtz, x 3 x2 y 3 y2 2 x y2 x3 Dty, x 6 x y Dty, x 2 x2 y Dty, x . Dty, x 0 3 x2 y 3 y2 2 x y2 Dt5 y ^ 2 Siny x ^ 2, x 10 y Dty, x Cosy Dty, x 2 x Solve, Dty, x Dty, x 2x 10 y Cosy Dtx ^ 2 y ^ 2 z ^ 2, x, Constants z 2 x 2 y Dty, x, Constants x3 y 3 x y2 x2 y2 Dtz, x, y 3 x2 6 y 4 x y 6 x y Dtx, y 2 y2 Dtx, y 6 x Dty, x 2 x2 Dty, x 3 x2 Dtx, y Dty, x 6 y Dtx, y Dty, x 4 x y Dtx, y Dty, x x ^ 2 y ^ 2 x y a b 0 0 a b a2 b2 1 3 NIntegrateSqrtx y, x, 0, 2, y, 0, Sqrtx 2 4.65557 NIntegrateSqrtx ^ 2 z ^ 2, x, 2, 2, y, x ^ 2, 4, z, Sqrty x ^ 2, Sqrty x ^ 2 26.8083 y .; DSolvey 'x 2 yx, yx, x yx 2 x C1
34.
34
1st.nb yx y0 y 'x . 2 x C1 y0 y x y[x] y[x] y’[x] y[0] y[x] DSolvey 'x 2 yx, y, x y Functionx, 2 x C1 yx y0 y 'x . C1 3 2 x C1 y y y .; z .; DSolveyx z 'x, zx y 'x, y, z, x z Functionx, x 1 2 x C1 x 1 2 x C2, 1 1 2 2 x 1 2 x C1 x 1 2 x C2 1 1 y Functionx, 2 2 y .; z .; DSolveyx z 'x, zx y 'x, yx, zx, x zx x 1 2 x C1 x 1 2 x C2, 1 1 2 2 x 1 2 x C1 x 1 2 x C2 1 1 yx 2 2 DSolvey 'x yx, y0 5, yx, x yx 5 x s1 NDSolvey 'x 1 2 yx, y0.01 0.1, y, x, 0.01, 1 y InterpolatingFunction0.01, 1., PlotEvaluateyx . s1, x, 0.01, 1, AxesOrigin 0, 0 1.0 0.8 0.6 0.4 0.2 0.2 0.4 0.6 0.8 1.0 t 10 10
35.
1st.nb
35 Modulet, t 8; Printt 8 t 10 fv_ : Modulet, t 1 v ^ 2; Expandt; fa 1 2 a a2 t 10 gu_ : Modulet u, t t t 1 u; ga b ab ab 1ab x^2 1 1 x2 Blockx a 1, 1 1 a2 x x m i^2 i2 Blocki a, i m a a2 Modulei a, i m a i2 Removeg gx_ : 1 ; x 0 gx_ : 1 ; x 0 ?g Global`g gx_ : 1 ; x 0 gx_ : 1 ; x 0 Removeh; hx_ : Whichx 0, 1, x 0, 0, x 0. 1
36.
36
1st.nb h 1, h0, h3 h 1, h0, h3 qx_ : SwitchModx, 3, 0, a, 1, b, 2, c q17 c If[x==y,a,b,c] If , , Ife f, a, b, c c TrueQe f False e f False Mathematica , DoPrinti i ^ 2, i, 1, 4 2 6 12 20 DoPrinti, j, i, 4, j, i 1 2, 1 3, 1 3, 2 4, 1 4, 2 4, 3 t 67; DoPrintt; t Floort 2, 3 67 33 16 n 25; Whilen Floorn 3 0, Printn
37.
1st.nb
37 8 2 Fori 1, i 5, i , Printi 1 2 3 4 x .; Fori 1; t x, i ^ 2 10, i , t t ^ 2 i; Printt 1 x2 2 1 x2 2 3 2 1 x2 2 2 Nestf, x, 5 fffffx NestFunctiont, 1 Sqrt1 t ^ 2, x, 2 1 1 1 1x2 FixedPointFunctiont, Printt; Floort 3, 67 67 22 7 2 0 0 t 1; Dot k; Printt; Ift 20, Break, k, 10 1 2 6 24 t 1; Dot k; Printt; Ift 3, Continue; t 2, k, 5
38.
38
1st.nb 1 2 6 32 170 Removef fx_ : Ifx 5, Returnbig; t x ^ 3; Returnt 7 f3 big f5 118 hx_ : Ifx 0, Throwerror, x Catchh3 6 ( error Catch ) Catchh 3 error Residuefz z ^ 5, z, 0 0 Residue1 Sinz ^ 5, z, 0 3 8 SeriesExpx, x, 0, 10 x2 x3 x4 x5 x6 x7 x8 x9 x10 1x Ox11 2 6 24 120 720 5040 40 320 362 880 3 628 800 Seriesx ^ x, x, 0, 4 1 1 1 1 Logx x Logx2 x2 Logx3 x3 Logx4 x4 Ox5 2 6 24 Normal 1 1 1 1 x Logx x2 Logx2 x3 Logx3 x4 Logx4 2 6 24
39.
1st.nb
39 Sum1 2 n 1 2 n 1, n, 1, Infinity 1 2 SumLogn 1 n, n, 1, Infinity Sum::div : Sum does not converge. Log 1n n1 n
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