Hello people, at last i have my CP and i'm enjoying it a lot, but a have a problem. The manual is very easy to understand but it has so few examples ! It doesn't tell us much!
I need to solve a equation system with 3 equations and three unknowns
Example:
2x+3y+4z=8
4x-3z+2y=6
6x+4y+8z=10
and i need to know x,y and z
Sorry to ask such a simple thing but i am short on time and my exams begin next week.
Thanks
Simultaneous Equations
Started by
fiberoptik
, Oct 29 2004 02:35 PM
14 replies to this topic
#1
fiberoptik
-
- Members
-
- 70 posts
Casio Addict
-
Calculators:
ClassPad 300, FX-850P, FX-7700G, Voyage 200
Posted 29 October 2004 - 02:35 PM
#2
CrimsonCasio
-
- [Legends]
-
- 3579 posts
UCF Ambassador
- Gender:Male
- Location:USA
- Interests:Claculators, Stephen King, Video Games, Calculators, Programming, Calculators, Reading, Calculators... hmm, what else... Ah! Calculators!
-
Calculators:
Algebra FX2.0, CFX 9850Ga+, Classpad 300
Posted 29 October 2004 - 04:32 PM
use the 2d keyboard and find a button that looks like this: {|
thats the similtanios equasion solver.
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z
thats the similtanios equasion solver.
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z
#3
fiberoptik
-
- Members
-
- 70 posts
Casio Addict
-
Calculators:
ClassPad 300, FX-850P, FX-7700G, Voyage 200
Posted 29 October 2004 - 04:54 PM
Thank you very much for your help
#4
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 30 October 2004 - 12:28 AM
I've tried what you told me, but that function only let me put two equations, and i need three ! I'm i doing something wrong ?
Thanks
Thanks
#5
CrimsonCasio
-
- [Legends]
-
- 3579 posts
UCF Ambassador
- Gender:Male
- Location:USA
- Interests:Claculators, Stephen King, Video Games, Calculators, Programming, Calculators, Reading, Calculators... hmm, what else... Ah! Calculators!
-
Calculators:
Algebra FX2.0, CFX 9850Ga+, Classpad 300
Posted 30 October 2004 - 01:30 AM
hit the button again to add more equations 
#6
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 04 November 2004 - 04:08 AM
Excuse me... but where I should enter this equations ? how I should solve them ???
Thanks
Thanks
#7
CrimsonCasio
-
- [Legends]
-
- 3579 posts
UCF Ambassador
- Gender:Male
- Location:USA
- Interests:Claculators, Stephen King, Video Games, Calculators, Programming, Calculators, Reading, Calculators... hmm, what else... Ah! Calculators!
-
Calculators:
Algebra FX2.0, CFX 9850Ga+, Classpad 300
Posted 04 November 2004 - 04:17 AM
i dont know how to describe it better...
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)
#8
fiberoptik
-
- Members
-
- 70 posts
Casio Addict
-
Calculators:
ClassPad 300, FX-850P, FX-7700G, Voyage 200
Posted 04 November 2004 - 11:08 AM
Thank you Crimson (can i call you this way ? 
)
Now i know how to solve systems with 2,3,4... equations.
Thanks
)Now i know how to solve systems with 2,3,4... equations.
Thanks
#9
CrimsonCasio
-
- [Legends]
-
- 3579 posts
UCF Ambassador
- Gender:Male
- Location:USA
- Interests:Claculators, Stephen King, Video Games, Calculators, Programming, Calculators, Reading, Calculators... hmm, what else... Ah! Calculators!
-
Calculators:
Algebra FX2.0, CFX 9850Ga+, Classpad 300
Posted 04 November 2004 - 11:47 AM
sure
#10
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 05 November 2004 - 03:50 AM
Excuse me... maybe there is an error but I could not solve multiple equations this way.
For example, defining
x=1
y=2
z=3
this way
2x+2y=6
1x+2z=7
3y+2z=10
inputing these equations in main application like
{2x+2y=6| x+2z=7| 3y+2z=10|x,y,z} and hiting enter, the CP return
{2x+2y=6,y,z}
is this answer correct ???
I'im searching for something that solves these equations and result the same as rref() would result for this matrix...
[ 2 2 0 6 ]
[ 1 0 2 7 ] // coeficient matrix | b
[ 0 3 2 10]
this is possible ?
For example, defining
x=1
y=2
z=3
this way
2x+2y=6
1x+2z=7
3y+2z=10
inputing these equations in main application like
{2x+2y=6| x+2z=7| 3y+2z=10|x,y,z} and hiting enter, the CP return
{2x+2y=6,y,z}
is this answer correct ???
I'im searching for something that solves these equations and result the same as rref() would result for this matrix...
[ 2 2 0 6 ]
[ 1 0 2 7 ] // coeficient matrix | b
[ 0 3 2 10]
this is possible ?
#11
fiberoptik
-
- Members
-
- 70 posts
Casio Addict
-
Calculators:
ClassPad 300, FX-850P, FX-7700G, Voyage 200
Posted 05 November 2004 - 10:54 AM
I have tried your example and the answer was {x=((3)/(2)),y=((3)/(2)),z=((11)/(4))}. Explain me better :
"For example, defining
x=1
y=2
z=3 "
I didn't understand this part
"For example, defining
x=1
y=2
z=3 "
I didn't understand this part
#12
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 05 November 2004 - 07:42 PM
I defined these values for variables x, y and z
x=1
y=2
z=3
these values, make the left side of equation = right side...
this way
2x+2y=6 (2 * (1) + 2 * (2) + 0 * (3)= 2 + 4 = 6)
1x+2z=7 (1 * (1) + 0 * (2) + 2 * (3) = 1 + 6 = 7)
3y+2z=12 (0 * (1) + 3 * (2) +2 * (3) = 6 + 6 = 12)
I would like to know if there is a way to enter these equations and the CP return the values of X, Y, Z.
If I take this equations, and build a matrix, I can calculate with rref(). The returned matrix will have the value of X, Y and Z.
I would like to know if there is a function to solve this linear system only with equations.
Thanks
x=1
y=2
z=3
these values, make the left side of equation = right side...
this way
2x+2y=6 (2 * (1) + 2 * (2) + 0 * (3)= 2 + 4 = 6)
1x+2z=7 (1 * (1) + 0 * (2) + 2 * (3) = 1 + 6 = 7)
3y+2z=12 (0 * (1) + 3 * (2) +2 * (3) = 6 + 6 = 12)
I would like to know if there is a way to enter these equations and the CP return the values of X, Y, Z.
If I take this equations, and build a matrix, I can calculate with rref(). The returned matrix will have the value of X, Y and Z.
I would like to know if there is a function to solve this linear system only with equations.
Thanks
#13
fiberoptik
-
- Members
-
- 70 posts
Casio Addict
-
Calculators:
ClassPad 300, FX-850P, FX-7700G, Voyage 200
Posted 06 November 2004 - 11:17 AM
Hi
quoting from a previous post from CrimsonCasio
"
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)"
go to the 2D separator in the keyboard and find this symbol { |, then tap the symbol the n- of equations you need, (if you tap one time you get 2 equations, tap 2 times get 3 equations and so on), next write the equations and finally write the unknowns you need. look at the example above.
quoting from a previous post from CrimsonCasio
"
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)"
go to the 2D separator in the keyboard and find this symbol { |, then tap the symbol the n- of equations you need, (if you tap one time you get 2 equations, tap 2 times get 3 equations and so on), next write the equations and finally write the unknowns you need. look at the example above.
#14
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 07 November 2004 - 02:11 AM
I realy do not know where or how you solve these equations. I've tried a lot of time, in diferent applications. First, I tried in main, copying *. After, with the same data, inputing in NumSolve, the "Incorrect number of parenthesis" error was shown.
* "
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)"
Somebody realy did this code solve multiple equations ??? where ??? Main, NumSolve ???
Well, I found that Solve() support multiple linear equations (and works well). Solving this system:
solve({2x+3y+4z=8, 4x-3z+2y=6, 6x+4y+8z=10}, {x, y, z})
the solution is {x=-1/13, y=38/13, z=-2/13}
Thanks
* "
{2x+3y+4z=8|
{4x-3z+2y=6|
{6x+4y+8z=10| x,y,z (hit enter)"
Somebody realy did this code solve multiple equations ??? where ??? Main, NumSolve ???
Well, I found that Solve() support multiple linear equations (and works well). Solving this system:
solve({2x+3y+4z=8, 4x-3z+2y=6, 6x+4y+8z=10}, {x, y, z})
the solution is {x=-1/13, y=38/13, z=-2/13}
Thanks
#15
Guest_Guest_*
Guest_Guest_*
-
- Guests
Posted 07 November 2004 - 02:14 AM
Excuse me
I found the {| button
I found the {| button
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
