• 2022-06-09
    解初值问题[tex=8.929x3.357]7EJHVCtO2IWq3KpdB+jQskomXAAKtxzZpzIgJE3bhk1P7f+qF8wlnN46PTBjmKbHg88LDLsrOxN/12qYx8xt+H1n9qTSso7JAyekaLQWF0/smC7AWsb0ag7N0eo9JBBrjBap2ZPWE4x/On2YLqrG8w==[/tex]