Typeerror: Unsupported Operand Type(s) For +: 'float' And 'list' In Python 3.6.8

I keep getting TypeError: unsupported operand type(s) for +: 'float' and 'list'. I am new to python programming and am trying to convert Matlab code into Python. Below is the tried

Solution 1:

There are multiple problems. In the expression math.cos((w[n/2 + 1 + [j]] - wc) you are putting the integer j in a single element list by doing [j]. Hence [j] + any_number does not work anymore.

Furthermore, you are indexing ar and ter, but these are one number (see random.uniform). If you want an array/vector of a specific size, you can use np.random.uniform with the size argument.

The following should work, but uses the same random values ar and ter on each loop iteration:

s = np.zeros((1,n))             
na = 8              
ar = random.uniform(1,na)              
ter = 2 * cmath.pi * random.uniform(1,na)         

for i in np.arange(ntarget): 
    td = t - (2 * (Xc + xn[i]) / c)
    pha = wcm * td + alpha * np.power(td, 2)        
    for j in np.arange(na):               
        pha = pha + ar * math.cos((w[n/2 + 1 + j] - wc) * td + ter)
        print('pha :', pha)