### Related

##### let

:lisp (defun swap (a ...

:lisp (swap 1 2);

:lisp (defun swaps (s...

Calculate

##### let-letsimp-xthru

tf : (1)/(1+(W*T*(z-1...

let( z, (2+T*s)/(2-T*...

letsimp( tf );

Calculate

##### let-letsimp

expr : ((2*%pi*n)/(%p...

let (b*c, k);

letsimp (expr);

Calculate

##### let

:lisp (setq a '(1 (2 ...

:lisp (dotimes (i 8) ...

:lisp (setq a '(1 2 3...

Calculate

##### let

:lisp (setq a '(1 (2 ...

:lisp (dotimes (i 8) ...

Calculate

##### let-letsimp-xthru

tf : (1)/(1+(W*T*(z-1...

let( z, (2+T*s)/(2-T*...

letsimp( tf );

Calculate

##### let

:lisp (let ((result))...

:lisp (let ((result))...

Calculate

##### let-letsimp

f:3;

d: a* b* z* w* e* i* ...

e:let(a,f);

Calculate

:lisp (defun ucs-inse...

:lisp (loop for x fro...

Calculate

##### let-letsimp-solve

eq1: (10+x)^2 = 100 +...

eq2: y^2 = z^2 + w^2;

eq3: (10+w)^2 = (10+x...

Calculate

### let

Run Example
```(%i1):lisp (defun r (n) (labels ((f (k l z) (let ((ln (+ (* 1.003 l) (* 0.006 z))) (zn (+ (* 0.0069 l) (* 1.026 z)))) (if (<
k n) (f (1+ k) ln zn) (cons (/ ln l) (/ zn z)))) (f 0 10 1000))))) (print (r 100));

NIL
NIL
(%i1) ```
Run Example
```:lisp (defparameter x 1)(defparameter y 2)(let ((x x) (y y))  (multiple-value-bind (a b)             (values x y)              (declare (ignore a))                               (values 0 b))));

0
2
(%i1) ```
Run Example
```:lisp (defvar *my-list* '(a b c nil (e) (d e f) g));

*MY-LIST*
(%i1) :lisp (defun levels (list &optional (depth 0))         (let ((result))         (if (atom list)              (push depth result)              (dolist (elem list (nreverse result)) (push (levels elem (+ depth 1)) result)))));

LEVELS
(%i1) :lisp (levels *my-list*);

((1) (1) (1) (1) ((2)) ((2) (2) (2)) (1))
(%i1) ```

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