feval problem Too many inputs to inline function.

a=0
b=2
y=5
x=1/2
f1=inline('(1+x^2)/(sqrt(x)+3)')
f2=inline('(1+x^2)/(sqrt(x)+3)')
f3=inline('(1+x^2)/(sqrt(x)+3)')
f4=inline('(1+x^2)/(sqrt(x)+3)')
f1=feval(f1,x)
f2=feval(f2,a,b,x)
f3=feval(f3,x,y)
f4=feval(f4,a,x,b,y)

i see this problem

??? Error using ==> inline.feval at 26

Too many inputs to inline function.

Too many inputs to inline function.

Error in ==> Untitled3 at 10

f2=feval(f2,a,b,x)

how can i fix it

Answer 1

[JESUS DAVID ARIZA ROYETH]

a=0
b=2
y=5
x=1/2
f1=inline('(1+x^2)/(sqrt(x)+3)')
f2=inline('(1+x^2)/(sqrt(x)+3)')
f3=inline('(1+x^2)/(sqrt(x)+3)')
f4=inline('(1+x^2)/(sqrt(x)+3)')
f1=f1(x)
f2=f2(x)
f3=f3(x)
f4=f4(x)

But inline will be removed in a future release. Use Anonymous Functions instead:

x=1/2;
f1=@(x) (1+x^2)/(sqrt(x)+3);
f1value=f1(x)

Answer 2

[Walter Roberson]

When you use inline() [which should be only if you have a need to prove that you can use inline], then you should define all of the variables you expect to use in the function, and their order.

a=0

a = 0

b=2

b = 2

y=5

y = 5

x=1/2

x = 0.5000

f1=inline('(1+x^2)/(sqrt(x)+3)', 'x')

f1 =

     Inline function:
     f1(x) = (1+x^2)/(sqrt(x)+3)

f2=inline('(1+x^2)/(sqrt(x)+3)', 'a', 'b', 'x')

f2 =

     Inline function:
     f2(a,b,x) = (1+x^2)/(sqrt(x)+3)

f3=inline('(1+x^2)/(sqrt(x)+3)', 'x', 'y')

f3 =

     Inline function:
     f3(x,y) = (1+x^2)/(sqrt(x)+3)

f4=inline('(1+x^2)/(sqrt(x)+3)', 'a', 'x', 'b', 'y')

f4 =

     Inline function:
     f4(a,x,b,y) = (1+x^2)/(sqrt(x)+3)

f1=feval(f1,x)

f1 = 0.3372

f2=feval(f2,a,b,x)

f2 = 0.3372

f3=feval(f3,x,y)

f3 = 0.3372

f4=feval(f4,a,x,b,y)

f4 = 0.3372