Help:Cannot perform the operation: {positive constant} .* {real affine} Uncategorized Mar 15, 2022 W Wang_J Mar 15, 2022 #1 Disciplined convex programming error: Cannot perform the operation: {positive constant} .* {real affine} 出错 * (line 36) z = feval( oper, x, y ); J Jack Mar 15, 2022 #2 Re-open your MATLAB, or provide more information, like the code line that threw this error, and all context related to that line.