
Unformatted text preview: Plot3D[Exp[-x^2-y^2],{x,-1,1},{y,-1,-1}] plot exp(-x 2-y 2 ) in 3D for the range x=(-1,1) and y=(-1,1) ListPlot[{{x1,y1},{x2,y2},{x3,y3}}] plot a list of ordered pairs (xn,yn) Solve[x^2+1==3,x] solve x 2 +1=3 for x algebraically Solve[{f[x,y]==A,g[x,y]==B},{x,y}] solve simultaneous equations for x and y FindRoot[x^2+1==3,{x,1}] numerically find a root of x 2 +1=3 starting at x=1 other stuff : //N give a numerical value for the expression {a,b,c} 3 element list (or vector) {{x1,x2},{x3,x4}} list of ordered pairs (or a 2x2 matrix) % most recent output expression %n n-th output expression in the history stack := defined to be (used for defining functions) == is congruent to (used in Solve, DSolve commands) -> replacement rule A.b dot product of a matrix A with a vector b (* comments are put inside a set of asterisks and parentheses like this *)...
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- Fall '08
- Doyle,F
- Calculus, Derivative, Vector Space, Complex number, a,b]
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