# MATLAB exponent problem

by swartzism
Tags: exponent, matlab
 P: 73 I am trying to do a very simple problem on MATLAB, but I do not know much about MATLAB so this is challenging. Here is the code: y=0:50:300; D=0.210; % D is the mean sediment diameter w=14*D^(1.1); % w is the particle fall speed A=0.067*w^(0.44); % A is the sediment parameter h=A*y^(2/3); % h is the shoreline depth under water plot (y,h); What I would like to happen is produce a graph of h=1.005*y^(2/3) with coordinates of h from 0 to 5 in increments of 0.5 and coordinates of y from 0 to 300 in increments of 50. The error I get is: ??? Error using ==> mpower Inputs must be a scalar and a square matrix. Error in ==> beachprof at 5 h=A*y^(2/3); % h is the shoreline depth under water What is going on here and how can I fix it?
 P: 448 Your problem is in this line: h=A*y^(2/3); What you want is: h=A*y.^(2/3); To understand the difference, read the docs: doc mpower doc power