## 350 Reputation

7 years, 187 days

## Thank you very much...

@tomleslie Thank you very much.

## Thank you very much...

@Kitonum Thank you very much. The formulas calculate volume can check.

## Can you write a procedure to get message...

@Kitonum Can you write a procedure to get message there exits tetrahedron or not? I am surprise when I got the value V (volume).

## Thank you very much...

@tomleslie Thank you very much.

## O is incenter circle of triangle ABC...

@Kitonum Thank you for your answer. Please help me, If O is incernter of triangle ABC, and three sides 3, 5, 7. How to find coordinaters of A, B, C?

## Triangle 3 - 4 - 5...

@Carl Love I replace 3, 5, 7 by 3, 4, 5, I got "Warning, expecting only range variable t in expressions [abs(cx)*cos(t), abs(cx)*sin(t)] to be plotted but found name cx
Warning, data could not be converted to float Matrix".

## Thank you very much...

@Carl Love Thank you very much.

## Maple 2018...

@vv I use Maple 2018. I got

## Remove eq := sin(9*x-(1/3)*Pi) = sin(7*x...

@Kitonum I think, we can remove

`eq := sin(9*x-(1/3)*Pi) = sin(7*x-(1/3)*Pi):`

## @Carl Love I think restart; a := 9*...

@Carl Love I think
restart;
a := 9*x-(1/3)*Pi:
b := 5*x-(1/6)*Pi:
solve(a = 2*Pi*k+b, x);
solve(a = 2*Pi*k+Pi-b, x);

## @Mariusz Iwaniuk  How to use your c...

@Mariusz Iwaniuk
How to use your code with
sin(9*x-(1/3)*Pi) = sin(5*x-(1/6)*Pi)?

## I agree with you...

@nm Yes, k is an Integer. I agree with you.

## Thank you vey much...

@tomleslie Thank you vey much.

## Thank you very much...

@tomleslie Thank you very much. A small question. Why I get error when I use nops(evalf(sol)) ?

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