| | Maxima | Maple | Mathematica | | limit | limit(x-7,x,3); | limit(x-7,x=3); | Limit[x-7,x->3] | | expand | expand((a+b)^3); | expand((a+b)^3); | Expand[(a+b)^3] | | factor | factor(%); ezgcd(num, denom); | factor(%); normal(%); | Factor[%] | | solve | solve(a*x^2=4,x); | solve(a*x^2=4,x); | Solve[a x^2==4,x] | | 3D plots | plot3d(sin(x*y),[x,-2,2],[y,-1,1]); | plot3d(sin(x*y),x=-2..2,y=-1..1); | Plot3D[Sin[x y],{x,-2,2},{y,-1,1}] | | display | set_plot_option([plot_format,gnuplot]); | plotsetup(x11); | Display["math.eps", %, "EPS"] | | environment | plot_options; | plotsetup(); | $DisplayFunction | | integral | integrate(x^2*sin(alpha*x),x,0,beta); | int(x^2*sin(alpha*x),x=0..beta); | Integrate[x^2 Sin[alpha x],{x,0,beta}] | | integer factor | | ifactor(%); | FactorInteger(%) | | square root | sqrt(3); | sqrt(3); | Sqrt[3] | | numerical | ev(%,numer); | evalf(%); | N[%,10] | | substitution | ev(%,x=1,y=2); or at(%,[x=1,y=2]); | eval(%,[x=1,y=2]); | ReplaceAll[%,{x->1,y->2}] | | sum | sum((1+i)/(1+i^4),i,1,10); | sum((1+i)/(1+i^4),i=1..10); | Sum[(1+i)/(1+i^4),{i,1,10}] | | delayed | 'sum((1+i)/(1+i^4),i,1,10); | Sum((1+i)/(1+i^4),i=1..10); | use := | | product | product((i^2+3*i-11)/(i+3),i,0,10); | product((i^2+3*i-11)/(i+3),i=0..10); | Product[(i^2+3*i-11)/(i+3),{i,0,10}] | | delayed | 'product((i^2+3*i-11)/(i+3),i,0,10); | Product((i^2+3*i-11)/(i+3),i=0..10); | use := | | infinity | INF | infinity | Infinity | | complex | %I | I | I | | | rectform(%); | convert(%,rect); | | | | polarform(%); | convert(%,polar); | | | | realpart(%); | Re(%); | Re[%] | | | imagpart(%); | Im(%); | Im[%] | | | abs(%); | abs(%); | Abs[%] | | | carg(%); | argument(%); | Arg[%] | | trigonometry | trigsimp(%); trigrat(%); | simplify(%); | Simplify[%], TrigSimp[%], TrigReduce[%] | | | trigexpand(%); | | TrigExpand[%] | | other | trigrat(%); | | TrigFactor[%] | | functions | f(x):=x^2+1/2; or define(f(x),x^2+1/2); | f:=x->x^2+1/2; or f:=unapply(x^2+1/2,x); | f[x_]=x^2+1/2 or f=Function[x,x^2+1/2] | | derivatives | diff(f(x),x,2); | diff(f(x),x&2); | D[f[x],{x,2}] | | delayed | 'diff(f(x),x,2); | Diff(f(x),x&2); | use := | | arrays | array([x, y], 300); | x := array(1..300); | Array[x, 300] | | split expression | pickapart(%, 4); | addressof(%); | FullForm[%]; | | | | disassemble(%); | [[3]] | | | | pointto(a[2]); | ReplacePart[Out[32], Expand[Out[54]], 1] | | | | rhs(solutions[2]); | | | terminator | ; or $ | ; | newline or ; | | range | [x,-2,2] | x=-2..2 | {x,-2,2} | | times | * | * | space or * | | last result | % | % | % | | assignment | : | := | = | | equality | = | = | == |
源地址：http://beige.ucs.indiana.edu/P573/node35.html
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