Skip to main content
JohnDoe1-Visitor
1-Visitor
April 2, 2012
Solved

Solving an Equation Numerically with Mathcad Prime 2.0

  • April 2, 2012
  • 4 replies
  • 4704 views

Dear Mathcad fans,

I just downloaded a trial version for mathcad prime 2.0 and I want to solve an equation numerically in the field of microwave engineering.

First I defined my constants C1:=1.2pF (picofarad); C2:=1.03pF and L:=10*10^-9 H (Henry) (Why there is no nanohenry nH in Matchcad Prime?!)

Then I opened Solve Block.

In Guess Value I put w:=1GHz (Gigahertz)

In Constraints I put (or mor accurately: try to put) my equation (1/(j*w*C1-j/w*L)+1/j*w*C2)=0

The problem is when I put the "=" character Mathcad automatically calculates the value for w=1 and gives me the result. But that's not what I want! I want to get the value of w for which the whole expression (1/(j*w*C1-j/w*L)+1/j*w*C2) equals zero.

Any help please?

Best answer by AlanStevens

The solve block works ok if you use 'Ctrl=' (see attached) 'Ctrl=' should work, but you can also find the comparative equality sign under Operators on the Ribbon, Then under Comparison it's the second from the left on the top line.

Alan

4 replies

nas0k1-Visitor
1-Visitor
April 2, 2012

Try using: "control =" (evaluation 😃 instead.

Please provide a copy of your worksheet. It will help the collab...

Norm

JohnDoe1-VisitorAuthor
1-Visitor
April 2, 2012

Thank you for the quick reply.

In the attachment you find a copy of my woksheet.

P.S. the "control =" doesn't work. when I hit "control"+"=" simultaneously nothing happens. Is there any icon representing the mentioned shortcut?

AlanStevens19-TanzaniteAnswer
19-Tanzanite
April 2, 2012

The solve block works ok if you use 'Ctrl=' (see attached) 'Ctrl=' should work, but you can also find the comparative equality sign under Operators on the Ribbon, Then under Comparison it's the second from the left on the top line.

Alan

Terms & ConditionsAccessibility statement