Python Error: Only size one arrays can be converted into python scalars

Question

I get this error. I should note that in my utility file "funcbarsq" is a function defined as a four vector dot product between another function funcbar and itself funcbar. Which uses another definition of a four vector dot product. So a four d dot product operation is defined, funcbar is defined, and funcbarsq is defined as the 4D dot product of funcbar*funcbar = funcbarsq.

C:\utilityfile in function(x, y, z, q, r, l, m, n)
    116 
    117 def function(x,y,z, q, r, l, m, n):
--> 118     val = np.abs(funcbarsqr/(float(q**2))
    119     return val
    120 

TypeError: only size-1 arrays can be converted to Python scalars

blue note · Accepted Answer · 2018-09-04 14:24:26Z

2

You are passing q**2 to float(). As the error message says, this value (and consequently q) should be an array with only one element. In your case it is not, and that's where the error comes from.

answered Sep 4, 2018 at 14:24

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