Hi I'm using matlab and was wondering if anyone could help fix my code. This is the error message I get: Undefined function or method 'dsolve' for input arguments of type 'char'
eqn = '-D2u + Du = x^2';
initval = 'u(0)=1, u(1)=0';
u_e1=dsolve(eqn,initval,'x')

Question

Hi I'm using matlab and was wondering if anyone could help fix my code. This is the error message I get: Undefined function or method 'dsolve' for input arguments of type 'char'
eqn = '-D2u + Du = x^2';
initval = 'u(0)=1, u(1)=0';
u_e1=dsolve(eqn,initval,'x')

espex · Answer

Perhaps you do not have the symbolic toolbox installed.