Community Profile

# Monirul Hasan

14 2018 年以降の合計貢献数

#### Monirul Hasan's バッジ

ODE45 Solution for a coupled equation
Hi, I have a coupled differential eqaution for a decay model. I have tried to solve the problem with ODE45 (code given below). T...

12ヶ月 前 | 1 件の回答 | 0

### 1

System of differential equations and fitting with lsqcurvefit
Hi, I have a system of equation like this dN/dt = J(t)/(e*d) - gamma*N.^2, .............. (1) here J(t) is time dependent term-...

1年以上 前 | 1 件の回答 | 0

### 1

Error : Objective function is returning undefined values at initial point. lsqcurvefit cannot continue
I am having this ''Objective function is returning undefined values at initial point. lsqcurvefit cannot continue'' errror messa...

1年以上 前 | 1 件の回答 | 0

### 1

Solution of Non linear Equation
Thanks a lot Stephan.

1年以上 前 | 0

Solution of Non linear Equation
Hi Stephan, I did'nt understand the new process quite good (not converting symbolic solutions into double data type). Please exp...

1年以上 前 | 0

Solution of Non linear Equation
Hi, I am using trying to find a sloution for a nonlinear system. With the matlab function 'vpasolve', I am now able to get the s...

1年以上 前 | 3 件の回答 | 0

### 3

how to solve system of nonlinear equation
I have a set of nonlinear equation as -(C1+C2)*x+C3*y-C4*x*y+1/4*C5*y^2+C6 = 0,....(1) C2*x-(C3+C7)*y-5/4*C5*y^2+3*C6 = 0;......

1年以上 前 | 1 件の回答 | 0

### 1

System of nonlinear equations
I have designed a code for a system of two nonlinear equation (code given). I have tried 'fsolve' to find the solutions. But I a...

1年以上 前 | 1 件の回答 | 0

### 1

Error: Function value and YDATA sizes are not equal
I have a fitting code with lsqcurvefit function. I am having this error "Function value and YDATA sizes are not equal"(line 251...

1年以上 前 | 1 件の回答 | 0

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how to control fitting in 'lsqcurvefit'?
Hi, I have a experimental data fitting code given below. In this code from the differential equation (line 30), the 'lsqcurvefit...

2年弱 前 | 2 件の回答 | 0

### 2

How to send specific conditions to lsqcurvefit?
Hi, I have a experimental data fitting code given below. In this code from the differential equation (line 30), the 'lsqcurvef...

2年弱 前 | 1 件の回答 | 0

### 1

How to do curve fitting with differential equation?
I have a differential equation as, dotn(1) = -k_rs*n(1)-k_ISC*n(1)-k_SS*n(1)^2-k_ST*n(1)*n(2)+0.25*k_TT*n(1)^2; Here k_S...

2年弱 前 | 1 件の回答 | 0

### 1

Is it possible to solve a differential equation without ODE functions?
If dy/dt=-ky...(1) can be written as y_n = y_(n-1)-ky*Δt......(2), where dy= y_n - y_(n-1) How to solve equation (2) using a Fo...

2年弱 前 | 0 件の回答 | 0

### 0

How can I solve this system of differential equation
Trying to solve this problem (picture and zipped Simulink file of the problem added). I am not sure what's went wrong, maybe it'...

2年弱 前 | 1 件の回答 | 0