Hi guys ,
I have the next declaration in Mathematica :
myfunc [lis_list]
and myfync [x_,y___]
what does "lis_list" means ? I know that when I want to declare a variable of a function
I must write myfunc[SomeVar_] with one _
but what are 3 times _ (meaning ___)
I hope...
Hi ,
I'm trying to write down the following function :
sort[list_]
it needs to sort a list of numbers by checking each two adjacent numbers and swap them
if it is needed , but it doesn't work . I need to implement it using Pattern Matching .
but I don't understand how can I...
Hi ,
I'm trying to solve the following equation:
e^x=x^3 + x^2 -1/4* x -4
using this code :
NSolve[Exp[x] = x^3 + x^2 - 0.25 * x - 4, x]
but it doesn't work .
In addition I'm trying to solve it graphically by plotting the left and right functions simultaneously . but how ? with...
I'm good in writing functions in Matlab , however since moving to Mathematica , I find it pretty hard to write them . For instance I need to write a function that returns a [1,0,-1] to integers, meaning x>0 , x==0 , x<0
with a single If , but I didn't find a way with one (only two)...
Hi guys ,
I'm a little new with Mathematica and I'm trying to write down some functions.
the first one is writing a functions that square the elements in a vector , recursively ,
using patterns .
so , I tried this one :
x = Range[1, 10];
sq[0,list_]=list^2;
sq[sum_,list_] :=...
Hi all ,
I'd like your help with some actions taken with matrices .
if A=[1 2 3 ; 4 5 6 ; 7 8 9 ] and C=[1 3 -1 ; 2 4 0 ; 6 0 1 ]
what is the difference between A/C and A\C ?
what does it mean A./A ? what is A. ? MATLAB doesn't give me an answer when I write A.
thanx
for example , when I type in Matlab the following input :
simp('sin',0,pi/3,40)+simp('cos',0,pi/3,40)
sin suppose to be used , but it doesn't .
It says : "? Error using ==> sin
Not enough input arguments. "
"Error in ==> integral=integral+4*eval(f); "
Hi guys ,
I need to write a code in order to calculate Simpson's Rule.
Here is my code , what's wrong with it ?
function [integral]=simp(f,a,b,n)
if mod(n,2)~=0
warning('n must be even!')
else
h=(b-a)/n;
integral=0;
for i=1:1:n-1
x=a+i*h...
hi guys ,
I'm trying to draw the following function , however MATLAB doesn't like my code . What am I doing wrong ?
z = x + (y – 100)^2
where x = -50 : 50,
y = 0 : 200
my code :
[x,y]=meshgrid(-50:1:50,-0:1:200)
surf(x , y , x. + (y.-100)^2)
thank you