Atreyagaurav
/ ConjugateGradient
Created
July 14, 2019 15:22
Matlab script for solving linear equations by conjugate gradient method.
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| function f=sol(a,x,b) | |
| %conjugate gradient method | |
| g=a*x-b; | |
| d=-g; | |
| while(1): | |
| alpha=(g'*g)/(d'*a*d); | |
| x=x+alpha*d | |
| beta=g'*g; | |
| g=g+alpha*a*d; | |
| beta=g'*g/beta; |
Atreyagaurav
/ tacheometry.m
Created
July 14, 2019 15:09
It calculates the tacheometric readings for survey from known points. so you can reverse engineer the data.
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| function f = tach(l,m,n,x,y,z,h) | |
| %this function gives you the horizontal angle, stadia reading and vertical angle for | |
| %tacheometry | |
| % input as (x-of stn,y of stn,z of stn,x,y,z of point,HI) | |
| hz=sqrt((l-x)^2+(m-y)^2); | |
| op=1:6; | |
| alpha=radtodeg(atan((x-l)/(y-n))); | |
| if ((x-l)<0 & (y-m)>0) | |
| alpha=alpha+360; |
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