## 220 Reputation

16 years, 363 days
Glasgow, United Kingdom

## How to get Celsius on x-axis of a plot?...

Maple

alpha:=1:dT:=Th-Tc:n:=1:

plot(subs(Tc=400,n*alpha*dT/2),Th=300..700);

All the units are in Kelvin but now I want to have Th on x-axis to be in Celsius.

Is this possible?

Thanks

## method=laplace???...

Maple

Hi,

Can i use method=laplace to solve an ode with no initial condition?

ode := diff(phi2(x),`\$`(x,2))-Omega0*diff(phi2(x),x)-k*R1*E1/C*sigma*phi2(x)-l^2*phi2(x)+2*R*k/C*N2*exp(Omega0*(x-1))*cosh(l*(x-1))*l*C2/exp(-l) = 0;

bcs:=phi2(1)=0,phi2(S0)=-N4*Phi;

sol := dsolve({ode, bcs}, phi2(x), method=laplace);

Thanks

## If fsolve miss the solution then..??...

Maple

Hi,

How to solve this equation?

Any Idea?

Thx

1.778895759*Sigma-1831241.099/(76553.66445-.576e-5*Sigma^2)+6600.970252*Sigma/(76553.66445-.576e-5*Sigma^2)+.5739576533e-1*Sigma^2/(76553.66445-.576e-5*Sigma^2)+.4735119433e-4*exp(.7618258041e-2*Sigma)*Sigma^2/exp(.9051395693e-5*Sigma)/(76553.66445-.576e-5*Sigma^2)-39332.76308*exp(.7618258041e-2*Sigma)*(41.17+1/(1-exp(-160)))/exp(.9051395693e-5*Sigma)/(-69.17083220+Sigma)/(-69.17083220-Sigma)-629324.2088*exp(.7618258041e-2*Sigma...

## how to plot Sigma(R30)?...

Maple

Hi,

I am trying to plot this function Sigma(R30) but I get failed to do so. Any one would like to try to help me out?

The attached maple sheet contains the asymptotic solution of the huge equation in .txt file.

thx.

20110818_section4-5a.txt

## fprint command help...

Maple

hi

I want to have a fprint command which should given me the data in two columns.

I want to modifiy the following command

fprintf(fd,"%f \n",li,sigmai);

this command gives me data in horizental form, i.e.,

`0.001000 0.300990 0.600980 0.900970 1.200960 1.500950 1.800940  2.100930`
` `
`But i want it in the follwoing form`
` li              sigma`
`0.001000 0.300990`
` 0.600980 0.900970`
 1 2 3 4 5 6 7 Page 1 of 7
﻿