Raising to a power on both sides of an equation

Question

Raising to a power on both sides of an equation

treddie (Computer)

(OP)

18 Dec 05 01:20

Howdie.
I am new to MathCAD, and can't seem to find a solution to a basic problem, which is this:

If I have the equation t = u + r, is there a way to square both sides automatically to get t^2 = u^2 + 2ur + r^2?

The reason I'm asking is that I have a HUGE expression that is probably going to result in a quartic, and squaring the equation will take forever and probably result in hard to find errors across 3 or 4 pages.

Thanks in advance,
treddie

rfus (Mechanical) · Answer 1 · 2005-12-22 13:34:42

Since your new then just follow the basics. Everything must be defined unless your working symbolically, otherwise it turns red. The left side of your := and the right side are not one in the same. Reassign a variable to represent t^2 and then use that variable in your next expression.

below, a b c and d would all have to be defined.

When you get better at the software you can create arrays or sequences and even do programming. but for now lean the basics.

a=1 b=1 c=2 d=2

u:a+b
r:= c+d
t:= u + r
t=6

x:= t^2
x=36

You can create subs to explain but you can't say t^2 :=

IRstuff (Aerospace) · Answer 2 · 2005-12-22 16:46:46

Not sure what you are trying to do. You can square the RHS by using the symbolic processor

TTFN

Come Join Us!

Posting Guidelines

Raising to a power on both sides of an equation