Solve this linear system HP50g
Hi guys,.
I am an engineer in electrical engineering and have to solve systems of linear equations on a regular basis, so that the functionality is very important for me. Everything works very well, 95% of the time but sometimes I meet systems that the HP50g doesn't seem to like. For example one below.
I want to solve for x, y, z and one in terms of V
V- 100000 x +is-100000 100000x= 0
-250000is-V+ 100000x100000z= 0
-250000z+ 100000one+ 100000y= 0
a+ 100000-250000z= 0
After these 4 equations is on the stack, I'm them in a vector by pushing {4} in the stack and then by pressing -> ARRY. Then I push the variables I want to solve for the battery, x, y, z and a and a vector of them. Then, I use LINSOLV to solve the system. However, when I do it this way, the calculator gives me an equation for x, an equation for y and 2 equations for z and no equation for s. I'm not sure what I'm doing wrong. Is there another way to do that would give me 4 equations, one for each variable I want to solve for in terms of V?
If my method to solve linear equations is somehow confusing, I basically followed this video
http://www.YouTube.com/watch?v=z802L29JyQE
Thanks in advance.
Hello
Do not know exactly how you typed, so I'm being explicit just for some b:
Notes:
(1) as an equation is entered, use ' '
(2) it is preferable to use a comma to separate the real and imaginary parts
(3) explicit use multiply
If the entry will look like this:
'(4,3*X) = (4.7)'
For this simple equation and assuming that X is defined as an independent variable (reproduced by 'X' in the top middle of the screen), you can use SOLVEVX for this one: (No. 5 in S.SLV menu or F5 if you use soft-keys)
with "_Approx" uncontrolled, the answer is:
X = 7/3
with "vabout" checked the answer is:
X = (2.333333333,0) (although X is part of the imaginary number, it is himself a real number).
Kind regards.
Tags: HP Tablets
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