find point graph matlab
I just conducted an experiment on DC Magnetization characteristics and noted down all the values... I thought of analysing the values using MATLAB... I entered the field current in one matrix and the voltage in another matrix... I could plot the graph... Now how do i find out things like critical resistance, critical speed and more from the graph using MATLAB... I know how to find them using a normal graph sheet but i'm unable to find out info on how to go about it in MATLAB... I need to draw a tangent at a point and draw parallel lines and do such things... Can someone help me on how to do this in MATLAB? Please Help...