You can use 'function python' for multi-line commands too. Plot2d(fx,-1,1) w=fzeros(fx,-1,1) plot2d(w,fx(w),>points,>add):ĭue to user demand, there is no a Python mode.įrom now on every command, is interpreted as a Python command. It makes use of fextrema() and bisectin(). I added a function fzeros() which finds all zeros of another function in an interval. >M=normal(4,3) v=vectorproduct(M) M'.v, norm(v), gramdet(M)

The length of the vector is equal to the area of the parallelotope spanned by the columns. It returns a vector perpendicular to all n-1 columns of a matrix with n rows. The generalized cross product is added too. >w=' gramdet(v|w), norm(crossproduct(v,w)) For two vectors in three dimensions, this happens to be the same as the cross product. It computes the volume of the parallelotope spanned by the columns of a matrix. It will work now for matrices with three rows, and it will return the results in such a matrix. I have also expanded the function crossproduct(). If you plot the same with plot3d, you do not need to scale, because plot3d() has its own scaling parameter. To get spectral colors, we scale the result to. E.g., we disturb the matrix (i*j) randomly. I have removed the ancient function scale() and replaced it with something more useful. The value of zscale is used to scale into that direction. But the function values are scaled with respect to x and y first. The function is scaled so that everything fits into a unit cube.

In this case, z is assumed to be a function value.

The plot3d(x,y,z) routine for plotting surfaces now respects >zscale. Now, we eliminate the NANs before we sum up. The function mset() is now fixed and works, even if there is nothing to set.

The help window now searches for strings automatically if no topic is found.

Current symbolic math toolbox update