How to Write y(0)=1?

I want to write y(0)=1

but it shows error and I want to change it to

y(θ)=1

how to write θ in place of 0?

[Ameer Hamza]

Why do you want to write this? What is the context?

[Sayali Jadhav]

For Solving Eulers Explicit method.

What to write it as intial value.

I can start with y(1) as intial value but how come others 0 is displayed as θ?

[Sayali Jadhav]

Thank You so much for responding

[Ameer Hamza]

In MATLAB array starts at index 1, so y(1) is the correct way to set initial condition.

"how come others 0 is displayed as θ"

Can you show where it is shown as theta?

Answer 1

[Ameer Hamza]

If you just want to display it, then you can use following code

syms J(theta)
J(theta)=1

This requires the Symbolic toolbox.