MatLab symbolic system of equations using solve function -


i have 3 equations , 3 unknowns lot of other variables. want analytical equations these 3 unknowns. tried solve, pc keeps on working without giving out result. tried solve when symbols left tilt,pan,t , of others numbers, didn't work. tried use fsolve. if put in variables , did work, need symbolic formula tilt,pan. solve code used didn't work:

syms xt yt zt v t tiltangle panangle radius offsetangle xrotationcentre yrotationcentre zrotationcentre eqn1=xt==v*t*cos(tiltangle)*cos(panangle)+radius*cos(tiltangle)*cos(panangle-offsetangle)+xrotationcentre; eqn2=yt==v*t*cos(tiltangle)*sin(panangle)+radius*sin(panangle-offsetangle)+yrotationcentre; eqn3=zt==v*t*sin(tiltangle)-g*t^2/2+radius*sin(tiltangle)*cos(offsetangle)+zrotationcentre solve(eqn1,eqn2,eqn3,tiltangle,panangle,t)

fsolve code used worked:

function  f=eqns(x)     zt=0.139;     yt=0.118;     xt=2.18;     g=9.81     v=50000/3600     xshootingpoint=-0.105     yshootingpoint=-0.395     zshootingpoint=-0.235     xrotationcentre=-0.33     yrotationcentre=-0.05     zrotationcentre=-0.235     radius=sqrt((xshootingpoint-xrotationcentre)^2+(yshootingpoint-yrotationcentre)^2+(zshootingpoint-zrotationcentre)^2)     distancebetween2points=sqrt((xshootingpoint-radius-xrotationcentre)^2+(yshootingpoint-yrotationcentre)^2+(zshootingpoint-zrotationcentre)^2)     offsetangle=acos((2*radius^2-distancebetween2points^2)/(2*radius^2))     tilt=x(1)     pan=x(2)     t=x(3)     f(1)=xt-(radius*cos(tilt)*cos(pan-offsetangle)+xrotationcentre)-v*t*cos(tilt)*cos(pan);     f(2)=yt-(radius*sin(pan-offsetangle)+yrotationcentre)-v*t*cos(tilt)*sin(pan);     f(3)=zt-(radius*sin(tilt)*cos(offsetangle)+zrotationcentre)-v*t*sin(tilt)+g*t^2/2;   end

seems have similar problem solving symbolic system of equations in matlab using solve() function


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more