Feeds
提问
Unidentified variable or function of x
function [x]=cake(p,q,r) a=diff(p,x) b=diff(q,x) c=exp(-1*int(p,x)) p2=diff(((a+b)*c),x)/((a+b)*c) q2=((a+b*c)*(-c)) r...
3 years 前 | 1 个回答 | 0
1
个回答提问
Can you help me draw the plot with decimals?
clear; clc; k=0.7944; firstone=2; carry=64; syms f(y) syms y f(y)=k*y*(carry-y) endday=0.1; dt=0.01; n=endday/dt; ...
3 years 前 | 1 个回答 | 0
1
个回答提问
Stuck at Gauss-Newton Method code
I am trying to make a code with a formula (𝑦 = 𝑎0 (1 − 𝑒 ^(−𝑎1𝑥 ))). Help x=[0.25,0.75,1.25,1.75,2.25]; y=[0.23,0.58,0.7...
3 years 前 | 2 个回答 | 0
2
个回答提问
how to solve this second differential equation mx"+cx'+kx+kx^3=f0cos(wt)(I am stuck)
What is wrong in my code? function Xdot=num_for(t,X) m=100; k=1000; c=160; ze=c/(2*sqrt(k*m)); wn=sqrt(k/m); w=5; F=160; f...
4 years 前 | 2 个回答 | 0
2
个回答提问
fplot invalid parameter error
Error occured at line 19, and it says invalid parameter. Could you help solve this problem? m=100; k1=1500; k2=2500; k3=70...
4 years 前 | 1 个回答 | 0
1
个回答提问
STuck at coding second order differential equation (mx"+cx'+kx=f0coswt)
Error at line 6. Could you help me, please. function Xdot=num_for(t,X) m=100; k=1000; c=160; ze=c/(2*sqrt(k*m)); wn=sqrt(k/...
4 years 前 | 1 个回答 | 0
1
个回答提问
Stuck at coding modified Newton-Rapson function
I made the function of Modified Newton-Rapson method . But when I put function as 3*x^2-10*x+7, xi=0, error=0.01, and the resul...
4 years 前 | 1 个回答 | 0
1
个回答提问
Stuck at coding newton-Rapson method
I inputed the number exp(-x) into an input and 3 into x0 but the Matlab says that Index exceeds the number of array elements, i...
4 years 前 | 1 个回答 | 0
