topic Re: mathcad 15 variable undefined in Mathcad

mathcad 15 variable undefined

astevenson-3 — Thu, 03 May 2018 14:58:35 GMT

Can anyone please tell me why mathcad 15 chooses to not recognise variable definition when you are using the equation directly under it's definition ie x=x 2*x

Re: mathcad 15 variable undefined

MJG — Mon, 02 Nov 2015 14:59:51 GMT

You probably need to provide some more information to get a better answer. However, here are two possible options.

Assign a value to x:

x:=5

2*x=10

Write a function:

f(x):=2*x

f(5)=10

f(7)=14

Re: mathcad 15 variable undefined

Fred_Kohlhepp — Mon, 02 Nov 2015 15:29:37 GMT

x=x is not a definition.

x := 2 defines the variable x as being equal to the number 2 (shift 🙂

x = x defines a Boolean constraint (cntrl 😃

Re: mathcad 15 variable undefined

VladimirN — Wed, 04 Nov 2015 18:54:03 GMT

Just note that after the variable definition, you can change the display of the sign equal (right-click on the definition and select "View Definition As" --> "Colon Equal"/"Equal").