matlab - How to define a variable without assign any value to it -


vo upper limit of integration expression , variable want predefine variable without value since variable trying solve for.

everything else defined.

%//a object's velocity changing function of sine, full cycle 0=>speed=>0  vt=-((speed/2)*cos((2*pi/t0)*t)-(speed/2)))  %//integrate vt function can distance has given  distance=int(vt,t,0,t0)  %//the last step need find how long takes object finish full cycle of movement  time=solve(eqn,t0)

try using syms command in matlab. syms part of symbolic math toolbox , can predefine "variables" without explicitly solving them. form part of mathematics expression want.

once formulate equation want, can use solve (as have used in post) solve variable you.


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