Add one Laguerre series to another. Returns the sum of two Laguerre series `c1` + `c2`. The arguments are sequences of coefficients ordered from lowest order term to highest, i.e., [1,2,3] represents the series ``P_0 + 2*P_1 + 3*P_2``. Parameters ---------- c1, c2 : a
(c1, c2)
| 305 | |
| 306 | |
| 307 | def lagadd(c1, c2): |
| 308 | """ |
| 309 | Add one Laguerre series to another. |
| 310 | |
| 311 | Returns the sum of two Laguerre series `c1` + `c2`. The arguments |
| 312 | are sequences of coefficients ordered from lowest order term to |
| 313 | highest, i.e., [1,2,3] represents the series ``P_0 + 2*P_1 + 3*P_2``. |
| 314 | |
| 315 | Parameters |
| 316 | ---------- |
| 317 | c1, c2 : array_like |
| 318 | 1-D arrays of Laguerre series coefficients ordered from low to |
| 319 | high. |
| 320 | |
| 321 | Returns |
| 322 | ------- |
| 323 | out : ndarray |
| 324 | Array representing the Laguerre series of their sum. |
| 325 | |
| 326 | See Also |
| 327 | -------- |
| 328 | lagsub, lagmulx, lagmul, lagdiv, lagpow |
| 329 | |
| 330 | Notes |
| 331 | ----- |
| 332 | Unlike multiplication, division, etc., the sum of two Laguerre series |
| 333 | is a Laguerre series (without having to "reproject" the result onto |
| 334 | the basis set) so addition, just like that of "standard" polynomials, |
| 335 | is simply "component-wise." |
| 336 | |
| 337 | Examples |
| 338 | -------- |
| 339 | >>> from numpy.polynomial.laguerre import lagadd |
| 340 | >>> lagadd([1, 2, 3], [1, 2, 3, 4]) |
| 341 | array([2., 4., 6., 4.]) |
| 342 | |
| 343 | |
| 344 | """ |
| 345 | return pu._add(c1, c2) |
| 346 | |
| 347 | |
| 348 | def lagsub(c1, c2): |