I want to find the inverse of my function 'mag' and plot it as 'mag1'

clc
clear
close all
subplot(2,1,1);
theta = 0:0.01:2*pi;
mag = sin(3*theta);
polarplot(mag)
title('Fan-Blade Polar Plot');
grid on;

subplot(2,1,2);
syms theta
theta = 0:0.01:2*pi; 
mag1 = finverse(theta); 
mag2 = (sin(3*theta))/2; 

polarplot(mag)
hold on;
polarplot(mag1)
polarplot(mag2)
title('Multi Polar Plot');
grid on;

Answer 1

[KSSV]

Inverse of

mag = sin(3*theta);

Would be:

theta = asin(mag)/3 ;