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Hello! I'm trying to transform working Python code to Matlab code. It's Simpson's rule. But MatLab code is not working. What should I change for in this code?

Python:

```
from math import sin
def f(x):
return ((0.6369)*sin(sin(x))*sin(x))
def method_simpson_compost(f,a,b,n):
h = (float(b)-a)/n
i = 0
fks = 0.0
while i<=n:
xk = a+i*h
if i==0 or i==n:
fk = f(xk)
elif i%2 == 1:
fk = 4*f(xk)
else:
fk = 2*f(xk)
fks += fk
i += 1
return (h/3)*fks
print method_simpson_compost(f, 0, 1.57, 10)
```

MatLab code:

file-function "f.m":

```
function func = f(z, x)
f = ((0.6369).*sin(z.*sin(x)).*sin(x))
```

file-function "s.m":

```
function simpson = s(f, a, b, n)
h = (b-a)/n;
i = 0;
fks = 0.0;
while (i<=n)
xk = a+i*h;
if i==or(0, n)
fk = f(z,xk);
if rem(5, 2) == 1
fk = 4.*f(z,xk);
else
fk = 2.*f(z,xk);
fks = fks + fk;
i = i + 1;
end
simpson = (h./3).*fks;
```

Thanks in advance.